The Wollenberg Bunker – Linking East Germany and the USSR

Heading to Berlin or the former GDR? Looking for traces of the Cold War open for a visit?

A Travel Guide to COLD WAR SITES in EAST GERMANY

Second Edition - 2024

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The events taking place on the geopolitical stage during the last decade of the Cold War – the 1980s – gave little indication of the imminent collapse of the Soviet-led Eastern Bloc (1989-1991). Correspondingly, looking at the amount of technology developed and deployed in the military field during the late, hi-tech stage of the Cold War, it is easy to notice that opponents on both sides of the Iron Curtain dedicated a significant (and even increasing) budget in preparation for a possible total confrontation. Reading papers and specialized books from the time, the outbreak of an open conflict, such to put a violent and abrupt end to years of opposition between the two opposing systems by recurring to nuclear warfare over the territories of Western Europe (most of them belonging to the NATO alliance, and all being substantially more militarized than today), was not deemed just likely, but more as a matter of time.

The БАРС system – The tropospheric network of the Warsaw Pact

In that era of extreme tension, it is not surprising that one of the most sophisticated and expensive assets developed and deployed jointly by all Nations in the Warsaw Pact, of course led by the USSR, came alive. History would cut its life short though, and as soon as the Warsaw Pact disintegrated, as a result of the opt-out from communist dictatorship of all Countries in Eastern Europe, this asset was decommissioned. This system was the tropospheric communication system ‘БАРС’, a Russian word reading ‘BARS’ and meaning ‘snow leopard’. The name stands as an acronym for four words in Russian, which translate into something like ‘Sheltered autonomous radio communication system’.

The idea put forward by the Soviet top-ranking military staff in the early 1980s (prior to the onset of Gorbachev administration) was that of a system capable of transmitting complex orders (not just simple signals, like for opening a bunker door or silo, but articulated messages) in a safe encrypted way, at a long distance and minimizing the chance of a complete breakdown even in case of an enemy nuclear attack. Despite being not new, the concept of a resilient and reliable system, such to allow exchanging significant amount of data without relying on cables, had been tested in earlier stages of the Cold War only for short-radius operations. Mobile transmitters/receivers, loaded on purpose-designed trucks, allowed for a reduction of the risk of a direct hit from an attacker, and for a quick redeployment in case of need. However, for the amount of data and range required for the coordination of a war scenario, involving many different Countries, and geographically encompassing an entire continent, a different system was required, capable of transmitting more massive data flows on longer distances, with a reduced risk of a sudden or complete interruption.

The БАРС system was based on a certain number of stations, scattered over the territory of the Countries of the Warsaw Pact. Each node was built as a bunkerized, manned military installation, featuring high-power, high-frequency fixed antennas emerging from the ground, and an underground shelter protecting all the technical gear required for manipulating the data to be sent or received, interfacing with the other existing local (i.e. national) networks for military and executive governmental communication, and of course managing the tremendous amount of energy required to pump a long-reaching signal into the ether.

Laying on the front line with the West, hosting a Soviet contingent of some hundred thousands troops (see here and links therein), aircraft (see here), missiles (see here) and nuclear warheads (see here), and being a key-ally of the USSR in case of the outbreak of an open war (at least until late 1989), the German Democratic Republic (or GDR, or DDR in German) was clearly included in the БАРС network from the initial drafting phase. Similarly, Poland, Czechoslovakia, Hungary and Bulgaria, and of course the Soviet Union (which included Belarus and the Baltics, and stretched west to Kaliningrad), all had БАРС stations on their territory. Stations were located at a range of a few hundred miles from one another, thus within the range required for each of them to communicate with one or more of the other nodes. Data (e.g. orders, reports or authorizations) input locally could be relayed along the network through intermediate nodes, down to the intended destination node. There were 26 nodes in total, of which four were in the USSR.

The Wollenberg site – Bunker 301 ‘Tushurka’

The GDR in particular had three stations built, all along the border with Poland, and located east of Berlin – namely Station 301 in Wollenberg, at the same latitude of Berlin, Station 302 in Langsdorf, towards the Baltic coast, and Station 303 in Röhrsdorf (near Königsbruck), not far from Dresden in the southeast of the GDR territory. The first among them, the Wollenberg site (codenamed ‘Tushurka’) could communicate with the other two national stations, as well as with Station 207 in Poland, from where data would be transmitted further down the network, towards the USSR.

The site was built by the GDR state, with technical hardware coming from several Countries within the Warsaw Pact, and most of the military hi-tech components manufactured in the USSR. The actual site (similar to its sister sites) was built in the frame of a highly secretive operation. The staff comprised about 60-70 men, the majority of which were military, where about 15% were civil technicians. Maximum security clearance was required, due to the top-secret nature of the installation and of the overall БАРС system. The bunkerized part of the installation was only a component of the larger premises of the base, camouflaged within the trees on the side of low-rising hill.

As pointed out, the immense spending required for setting up this multi-national hi-tech military communication system, which was extensively tested and completely commissioned (as a network) by 1987, did not save it from a quick demise and disappearance. In particular, Station 301 went definitively offline as early as August 1990.

However, the fate of the Wollenberg site was not so sad as that of many former Soviet or NVA (i.e. the East German Army) installations in the GDR. The high-power antennas were torn down, but except from that, little material damage was inflicted to the buildings and bunker on site. The place was basically shut-off and left dormant, until when a society of technically very competent local enthusiasts started a plan to preserve and open it to visitors, as a memorial specimen of the technology of the Cold War years.

A visit to the Wollenberg bunker site reveals a tremendous deal of interesting details, very uncommon to find elsewhere in the panorama of Cold War relics around Europe. Thanks to a careful preservation and restoration work, the bunker has most of its original systems still plugged to the grid and lit-up – some of them are reportedly still working! Even though the communication networks have been severed, the experience in the bunker is really evoking, and the atmosphere – with all the lit-up cabinets, lights, CCTV cameras, 1980-style screens, etc. – closely resembles that of the bygone era when БАРС was operative!

This report and photographs were taken during a private visit to the bunker, carried out in the Summer of 2023.

Sights

A visit to the the installation in Wollenberg starts from the original high-security access gate. As you may quickly notice when passing through it and getting a first view of the site, the state of preservation is exceptional. Except for the lack of military staff around, everything looks mostly like in the years of operation.

A group of soft-construction service buildings and a reinforced multi-entry garage constitute the first – and visible – nucleus of the installation. All buildings are painted in a camo coat.

A former building for the on-site staff has been turned into a permanent exhibition, with memorabilia items from the Cold War years, when the Nationale Volksarmee (or NVA, the Armed forces of the GDR) cooperated with the Soviet Red Army and the national Armed forces of other Countries in the Warsaw Pact.

A meeting room, now employed also for small gatherings, is especially rich of interesting and diverse items, including emblems, books, memorial plates and pennants, as well as TV screens, hi-fi systems and and beamers from the era.

Another room has been set-up as a control center for the base, with an original console and regional maps.

Compared to military bases (for aircraft or tanks), the Wollenberg installation is rather compact, with a main road giving access to most of the (not many) buildings on site, as well as the bunker. Actually, the bunkerized part was built under a low-rising hill, with the antennas originally standing on top of it. Access to the bunker is possible either by climbing uphill on the main road, or through a suggestive original pedestrian tunnel. The latter starts from within the service building itself, and – somewhat unexpectedly, for an underground installation – it climbs uphill, while keeping beneath the surface of the hill side slope. The lower end is guarded by an original CCTV camera.

At the top end of the tunnel you can find the actual access to the bunker. The design and reinforcement level conferred grade ‘D’ protection according to the military standard in use at the time, with grade ‘A’ being the strongest. Access is through an airlock, constituted by two tight doors at the opposite ends of a small vestibule built in concrete. This design allowed protection from the blast of a nuclear device.

Notably, the locking mechanism of the tight doors is Soviet military standard, which can be found in high-value installations like nuclear depots elsewhere in the Eastern Bloc (see for instance here in Poland, and here in Czechoslovakia).

To the visitor with some experience of Cold War installations, it will be apparent from the very start of the tour that the state of conservation of the bunker, including the systems in it, is exceptional, similar to the rest of the Wollenberg site. The original warning lights and the CC-TV camera for identifying people at the entrance are still in place.

Next to the entrance, a control room with technical gear for checking-in can be found – including original dosimeters for radiation and chemicals, mostly Soviet-made. Looking inside these devices is possible, and reveals a great deal of sophistication in the design and realization of the military-grade material from the time.

Showers and sinks for washing, as well as canister for disposing of contaminated clothes, are located in the same area.

Upon getting access to the sealed area of the bunker and passing by the decontamination facility, you find yourself on the top floor of the underground bunker. The high-technology gear required for the transmission/reception of data on the БАРС network, as well as the interface with other national communication systems, required for receiving data, issuing orders, etc. over the territory of the GDR, were located on this floor.

Two symmetrically placed rooms host two twin transmission centers for the БАРС system. A single manned console can be found in each of them, surrounded by electronic cabinets and switches. At a closer look, all the material herein is Soviet made, and labeled in Russian only.

On the wall ahead of the console station is a set of cables, communicating with the antenna and allowing to set the orientation and monitoring its status.

The actual signals transmitted to the antenna, or received from it, traveled along special hollow ducts, with an almost rectangular section. Bundles of these ducts can be found in the ‘Sender’ (which means ‘transmitter’ in English) room, immediately next to the room where the manned console is.

The modulation and demodulation of the signals going out and coming in respectively through the antenna on top of the bunker required some special pieces of electronics, which included the Soviet-designed KY-374 klystron (codenamed ‘Viola’), a component to be found in the cabinets of the ‘Sender’ room.

Following the hollow ducts, it is possible to find where they finally exit the usually manned part of the bunker, bending into receptacles and leading outside. Piping related to other systems, including air conditioning, can be seen as well crossing or running in the same narrow technical corridors.

Beside the consoles monitoring the antenna and the data flowing through it, a kind of operative room for communication can be found, where consoles allowing to receive and forward data and communication to/from all systems are on display. This largely original room features consoles of different levels of technology.

Original explanatory schemes showing the basic features of the БАРС system are on display in that area – in Russian!

An adjoining room features the cabinets required for making all these system work. The cabinets are really many, with a significant share of material manufactured in the USSR. The sight of all these cabinets together is really impressive, and tangibly provides the feeling of a high technology, sophisticated and expensive design. It compares well, but in a largely up-scaled fashion, to the electronics to be found in some special communication bunkers on the western side of the Iron Curtain (see here).

Interspersed with the original arrangement of the cabinets and consoles are some displays of original material. These include specimens of different types of cables for signal transmission – some of them hollow and pressurized, others featuring impressive bundles of thinner wires – the KY-374 klystron, and other once top-secret core components of the БАРС transmission system. Also on display is one of the few remaining parts of the original system of antennas, once on top of the bunker. The antennas were the only part to be physically torn down when the system was decommissioned, upon the demise of the Warsaw Pact and the end of the Cold War.

The bunker was manned by military and technical staff 24/7. Furthermore, as typical for bunkers from the Cold War era, provision was made at a design level to allow the staff to live isolated within the bunker for an extended period of time, in view of the eventuality to face a nuclear fallout scenario.

On the same floor as the technical rooms, the commander of the station had his own private room. This is still adorned with typical Soviet iconography, as well as everyday material from the age when the bunker was operative.

A small canteen, with a kitchen and a modest living room, can be found at the same level. An original storage room has been employed to gather examples of everyday products, like soap, skin care cream, etc., as well as canned food, cocoa, and beverages of all sorts.

This represents a very rich catalog of now largely defunct and forgotten labels, from the age and regions of the Eastern Bloc (and especially from within the GDR). Also on display are bottles of spirits, likely still very good!

The visit proceeds then to the lower floor, which can be reached through a flight of metal stairs.

The lower floor host the plants required for the regular operation of the entire bunker, such to guarantee operational ability even in case of an enemy attack carried out with nuclear, chemical or biological warfare. The air filtering and conditioning system is very modern. Beside typical filtering drums for particles, to be found also in other bunkers (see for instance Podborsko here), you can see a bulky filtering and climate conditioning system, neatly arranged within two parallel square-shaped ducts. Filtering against chemicals as well as biologic agents was carried out employing special active filters.

Sensors for the level of contamination of the bunker air can be found in different rooms. Much material here is standard Soviet-made.

Systems for water pumping and compressed air can be found as well, including compressors, pumps and reservoirs. Looking at the always interesting factory labels in this area, it is easy to find export products of Bulgaria, Romania and other communist dictatorships of the era. Of course, much hardware is also manufactured in the GDR.

Electricity was supplied from the outside grid, yet capability for self-sustaining in case of a grid loss (for instance in case of war) was implemented as well. Three big German-made Diesel generators have been put in place, and are still in an apparently good condition.

Another example of the high technological standard reached in the late Cold War era is represented by the control room for the plants within the bunker. A manned control station, with a console and a direct view of lit-up cabinets, reporting the status of the various systems running in the bunker, compares well with control rooms of large industrial plants in operation today.

Carefully kept in its original status, with many of the electric links and cabinets still working, the sight of this room is especially evoking.

Also on the lower floor are the sleeping rooms for off-duty staff. Typically, this was not employed except for drills, when the bunker could be sealed to simulate operations in case of the outbreak of hostilities.

Back to the upper floor, it is possible to exit the bunker via a stairway and through a side gate. You will find yourself on top of the low-rise hill where the bunker has been dug. Here the concrete base of the crane where the БАРС antenna used to sit are still visible. Notably, these antennas were much smaller than the tropospheric antennas employed for the TROPOSCATTER system of NATO. This was the result of a different bandwidth employed for transmissions. Therefore, even in the days of operation, the antennas on top of the bunker were not as sizable as those of TROPOSCATTER installations (which were enormous in size).

Looking closely, in the top area of the installation, the duct for supplying the Diesel oil tank of the bunker can be found, similar to sensors for radiation and other atmospheric parameters (similar to what can be found also in other nuclear-proof bases, for instance here). These allowed to monitor the conditions of the outside air, detect an attack and trigger or manage the sealing of the bunker in case of need, by locking all the tight doors.

This access to the bunker is fenced by the original electrified fence, severing this area from the rest of the installation through a further layer of security.

All in all, a visit to the Wollenberg bunker offers an incredible insight in a fascinating and crucial field of warfare – data and communication exchange – as well as a lively and evocative display of a late Cold War hi-tech installation from the Soviet side of the Iron Curtain!

Getting there & Visiting

The German name of the Wollenberg bunker is ‘Militärhistorisches Sonderobjekt 301 Wollenberg’. It can be reached very easily with a car. It can be found in the open countryside along the regional road 158, driving about 35 miles (about 1 hour) northeast from downtown Berlin towards Poland. The exact location is between the small village of Höhenland (~4 miles) and the more sizable Bad Freienwalde (~6 miles). There is a large parking area immediately next to the road, giving direct pedestrian access to the premises of the former military installation. Despite being placed very conveniently, the site is rather elusive when passing by, since it is hidden in the trees and not directly visible from the road. The address corresponding to the place in Google Maps is Sternkrug 4, 16259 Höhenland. The inconspicuous village of Wollenberg, giving the name to the installation, is just nearby, but it is not crossed by the regional road, and it should not be employed for pointing this destination with a nav.

The Wollenberg bunker is a listed historical installation. It is perfectly maintained, privately managed, and it can be regularly accessed with guided tours. These are offered typically one day per week in the summer, or by prior arrangement. Possibly the best option for getting the most out of your visit is getting in contact with the group of very knowledgeable enthusiasts running the place. The official website is here (do not be discouraged by the ‘static’ appearance of the website, they are very active, and they shall typically answer your inquire).

My visit was planned by initiative of Dr. Reiner Helling (see also here), and we visited in a group of three, including the guide (Dr. Michael Schoeneck, a former engineer, with a profound knowledge of any technical aspects related to this installation), which happened to be a perfect option for touring also the narrowest receptacles of the bunker. Visiting in groups too big may be not advisable, since the rooms and corridors are rather narrow, and the place may turn overcrowded for interacting with the guide and for taking good pictures. I think the visit – including the technical content – may be tailored to the needs of the audience. For technical-minded subjects, historians and former military, a visit may take about 2-3 hours (the latter was my experience). In my case, the guide could understand but not speak fluent English, yet Dr. Helling could translate with ease all the explanations. Of course, if you have at least a basic knowledge of German and of the technical material you are looking at, this may simplify your visit, which is in any case highly advisable for those interested in military technology and the Cold War.

Heading to Berlin or the former GDR? Looking for traces of the Cold War open for a visit?

A Travel Guide to COLD WAR SITES in EAST GERMANY

Second Edition - 2024

DON'T LEAVE IT AT HOME! AVAILABLE in PAPERBACK or KINDLE from your national Amazon store!
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amazon.it | amazon.fr | amazon.co.jp

Herdla Torpedo Battery – Defending Bergen in WWII and the Cold War

Despite overshadowed by the natural beauties of Norway, the heritage of the rich war history of this Country would really deserve a dedicated trip. Thanks to its geographical location, this Scandinavian Nation had a primary strategic role both in WWII and the Cold War.

Hitler’s Third Reich military forces conquered Norway early in WWII (Spring 1940), gaining an effective stronghold for launching sea and air patrolling missions over the Norwegian Sea and the northern Atlantic. The long coastline stretching from the Skagerrak strait up to North Cape was made impenetrable to enemy invasion, building anew a capillary network of fortifications – the Atlantic Wall. This masterpiece of military engineering was based on an extensive catalog of reinforced concrete standard elements (Regelbau in German), ranging from fortified casemates to radar towers, to observation and target range finding stations, to bunkerized gun batteries, etc. These elements were assembled in larger fortified compounds, placed in key strategic locations along the coast or in the narrow firths reaching to major ports and towns, like Bergen or Trondheim.

Typically run by the Kriegsmarine (Navy) or Luftwaffe (Air Force), these forts may comprise measuring stations, anti-shipping guns, anti-aircraft cannons, plus barracks, services, ammo storages, and even airfields in some cases. They were built not only in Norway, but having been originally planned by the Third Reich to protect the entire coast of conquered continental Europe, they were erected along the shoreline also from Denmark down to France.

As a matter of fact, many of the Norwegian fortresses of the Atlantic Wall rank today among the most massive and well-preserved of the entire line (see here for some highlights).

But the war history of Norway, and of its mighty military infrastructure, didn’t stop with the end of WWII. With the start of the Cold War, Norway became a NATO founding member, and once again of great strategic value. It found itself in close proximity to the USSR, and with a long coastline facing the sea corridor taking from the highly-militarized Murmansk and Kola Peninsula (see here) to the northern Atlantic.

Most of the Atlantic Wall forts, especially anti-shipping and anti-aircraft gun batteries, were obsolete by the 1950s, and were soon deactivated. Some were abandoned or, when retained by the Norwegian military, they were modified to cover new functions.

In a few cases, the original mission of the site by the Third Reich was retained by NATO forces in the Cold War. This is the case of the torpedo battery in Herdla.

The fortress of Herdla was a major strategic fort in the Atlantic Wall, allowing to keep a watch on the entry point to the inner waters leading to the large industrial and military port of Bergen. Thanks to the morphology of the area, featuring a rare spot of flat land nearby a steep and rocky cliff, an airfield was installed by the Third Reich besides a set of bunkers, effectively hidden in the rocks. A land-based torpedo battery, consisting of a range-finding and aiming station and torpedo-firing tubes, was part of the fort.

During the Cold War, it was decided that the torpedo battery could be still a valuable asset, and Herdla was retained by the Norwegian military – by comparison, the airfield, too short for the requirements of the jet-era, was not. Over the years, the torpedo battery was potentiated to keep up-to-date against the technological offensive capabilities of the Eastern Bloc, and to exploit the most modern identification and surveillance techniques.

The torpedo battery was part of a larger naval fort, which controlled also the barrier of sea mines implemented to stop a sea-based intrusion towards Bergen.

As a matter of fact, the area control functions and the offensive capability of Herdla were retained until the early-2000s, when the fortress was deactivated following the end of the Cold War and defense budget cuts.

Luckily however, the often neglected Cold War chapter of warfare history has in Herdla a valuable asset – an accurately preserved fortress regularly open for a visit. A modern visitor center welcomes the more curious travelers, leaving Bergen towards the remoteness of the coast. It retraces the WWII heritage of the Herdla site, thanks to an exhibition centered around an original Focke-Wulf FW190, recently salvaged from the bottom of the sea, and with a special history to tell. Then a visit to the battery, looking like it had just been left by the military staff, is a unique emotion for both the specialized war technology enthusiasts and the general public as well.

The following report and photos is from a visit taken in Summer 2022.

Sights

As outlined in the overview, the Herdla site today is centered on two major highlights. One is the visitor center, with the preserved relic of a unique Luftwaffe Focke-Wulf FW190. The other is the former torpedo battery and Navy area command bunker, Norwegian facilities installed during the Cold War in bunkers dating to the Third Reich era.

Visitor center & Focke-Wulf FW190 exhibition

The relic of a Focke-Wulf FW190 A-3 German fighter from WWII is hosted in a dedicated room, where a scenic lighting makes this impressive exhibit literally shine.

This exemplar of the iconic Third Reich fighter, produced in some thousands examples, and now almost impossible to find especially in Europe, is ‘Gelbe 16’ (which can be translated in ‘Yellow 16’) of 12./JG5, and its history is deeply related to Herdla.

It took off on December 15th, 1943, from the airfield the Luftwaffe had established on the flat area now lying ahead of the visitor center, at the time a very active German airbase.

Following troubles with the engine, it ditched in the cold inner water near the island of Misje, some ten miles south of Herdla, the pilot being able to abandon the doomed aircraft, and being saved by local fishermen – and returned to the Luftwaffe, who had a Norwegian resistance prisoner released in acknowledgment.

The aircraft sank to the bottom of the sea, but its memory was not lost by some of the locals, who clearly remembered the events. The Focke-Wulf remained there for 63 years, but it was finally located and pinpointed by the Norwegian Navy, instigated by local interest, in 2005. After preparatory work – including exploration dives, to assess the condition and to set-up recovery operations – the fairly well-preserved wreck was lifted to the surface on November 1st, 2006, and loaded on a tug. Conservative restoration work then took place in Bergen.

Instrumentation and the machine guns were all recovered, together with many further fragments of equipment. Interestingly, evidence of repaint was found during conservation, retracing some previous assignments. Yet the history of this very exemplar remains difficult to write in its entirety.

Finally, following completion of conservation works, a new home for the aircraft was prepared in Herdla, where a hangar was built anew – and this is where you can see it today.

The aircraft is in an exceptional state of conservation, considering it spent 63 years in sea water. The fuselage, wings and tail are not significantly damaged, with just some paneling having disappeared on tail control surfaces, due to corrosion. The swastika on the vertical stabilizer is still perfectly evident, like other painted details.

The propeller blades are all bent downstream, as typical for an emergency landing carried out without the landing gear and the engine still running. The tail wheel is there with its original tire, the emblem of the German brand ‘Continental’, still in business today, being clearly noticeable.

The instrumentation from the pilot’s control panel has been put on display separately. Also a gyroscope has been found. Everything is only slightly damaged. Similarly, the two machine guns, dismounted prior to lifting the aircraft from the sea, are little damaged, and displayed with some ammo.

Complementing the exhibition are a few other pieces from other wrecks, as well as some quality scale models and dioramas portraying Herdla in the days of Third Reich tenancy.

Torpedo Battery

Access to the torpedo battery, which was built in WWII just above sea level, is from a gate on the land side. From outside, the bunkers in the fortress of Herdla appear especially well-deceived in the rocks of the cliff.

What is seen today inside, however, dates to the years of Norwegian tenancy. The facility was updated in several instances during the Cold War, the last in the 1990s. Immediately past the gate, you get access to a modern and neat mechanics shop, where a partly dismounted torpedo allows to have a suggestive look inside this marvelous weapon.

Interestingly, Norway inherited and went on operating a significant number of German G7a (TI) torpedoes. This was the standard torpedo employed by the Kriegsmarine since 1934, and with some modifications (‘TI’ standing for ‘first variant’, the later variants bearing other codes), for the full span of WWII.

Propulsion power for this torpedo was from a piston engine, fed by high-pressure vapor obtained by the combustion of Decaline with compressed air stored onboard, mixed in a heater (i.e. a combustion chamber) with fresh water, similarly stored in a tank. The resulting mixture fed a 4-cylinder radial piston engine, driving two counter-rotating propellers. The exhaust in the water produced a distinctive contrail of bubbles, and the presence of a high-frequency moving mechanism had the side-effect of a significant noise emission. The head of the cylinders can be clearly seen in the dismounted exemplar.

Guidance was provided by rudder steering controlled with the help of gyros, whereas depth was controlled via a mechanical depth sensor. The torpedo could stay close to the surface or keep an assigned depth. In WWII the torpedo had no homing device – i.e. it was ‘blind’, thus requiring carefully putting it on a target-intercept trajectory. It could however cover pre-determined trajectories of some sophistication. The set-point selection for guidance and the yaw regulation gyro assembly have been taken out of the torpedo, and can be checked out in detail.

The range could be selected before launching, and was traded off with speed. It could be between 5.500 and 13.200 yards, and the speed ranged between 44 kn and 30 kn correspondingly. The German origin of the torpedo on display is betrayed by the writings in German on some parts.

Leaving the workshop through a gate towards the inner part of the bunker, a roomy supply storage area can be found, with some interesting material including torpedo parts, as well as a torpedo launching cannon.

This item represents the primary way of launching torpedoes in the early Cold War from land-based batteries or ship decks. This was a technology inherited from WWII, when coastal batteries of the Atlantic Wall ejected torpedoes from slots in the bunker wall, shortly above the surface of the water, employing cannons similar to this one (which dates from the Cold War period), thanks to a burst of compressed air. This cheaper, but less ‘stealthy’ and accurate launching procedure, was replaced by underwater launching tubes only over the years of the Cold War, featuring an increase in the level of sophistication of warfare. Correspondingly, the slots in the side of the torpedo battery bunker facing the water were bricked up, and torpedo cannons were retained mostly for use from the deck of warships.

From the storage room you get access to the core area of the battery. This is through a decontamination lock, with gear for anti-contamination testing, including paper strips for checking contamination from poisonous gas.

The battery features two diesel generators for electric power, employed in case of disconnection from the regional grid.

Less usual – for a military facility – is the presence of two air compressors. Compressed air is relevant for torpedo operation, being employed for the launch burst from the torpedo tube, as well as for propulsion and gyros in the G7a torpedo. The air compressors in Herdla are made by Junkers, solid German technology from 1961!

A few bunkerized resting rooms for the staff manning the battery can be found in the same area, besides the power/compressed air supply room and the torpedo room. The resting rooms are minimal as usual, with suspended berths, and much personal military equipment on display – coats, blankets, medical kits, and more technical material.

Finally, the core of the battery is the torpedo room. This is much longer than wider, access is via the short side. In the Third Reich years, the launching slot was on the short side to the opposite end of the room, right above the water. Today, this slot has been bricked up, and there is no window at all.

The torpedoes are aligned on racks along the long sides of the room. The launching system is via two underwater tubes, which are accessed via obliquely mounted hatches, one to each side of the room at the level of the floor. The section of the racks closer to the entrance door is actually a pivoting slide. The slide could be pitched down, thus allowing the torpedo to slip through the hatch in the firing tube. The original launch control console can be found to the right of the access door – in a mint condition, it looks really like it had just been put in standby following a drill!

Over the years, the stockpile of G7a TI torpedoes was upgraded especially in terms of guidance. The major modification was the adoption of wired control. This is based on a thin electric cable unwinding as the torpedo proceeds along its trajectory, keeping it linked with the launching battery. This upgraded model is called G7a TI mod 1. Control via a steering joystick and trajectory monitoring system could provide manual guidance to the torpedo, thus sharply increasing the chance of target interception. This technology is still in use today. Wire tubes can be found on top of the rudder of torpedoes.

Besides the G7a, Herdla battery received the TP613 torpedo, a weapon developed in Sweden in the early 1980s from previous designs. Exemplars of this torpedo, still in use, are visible in the torpedo room. In terms of mechanics, the piston engine of this torpedo is powered by the reaction of alcohol and Hydrogen-peroxide. In terms of guidance, this torpedo features improved wired communication for guidance and power setting (i.e. changing torpedo speed during the run), as well as passive sonar homing. A dismounted section exposing the engine can be found on display.

The wire tube installation on top of the rudder is featured also on this model, and examples of the wire are on display.

The original guidance console, made by Decca, with a prominent joystick on it, is on display as well!

Training and proficiency checks are typically carried out without a warhead, but with an instructional head. Distinctively painted in shocking red, and with powerful lights in them – to show their position to simulated targets during training exercises, when needed – these are on display in a number. Since the torpedoes, just like missiles, are very expensive, a way of recovering them after instructional use has been envisioned, in the form of inflating bags coming out of the head, increasing the buoyancy of the emptied torpedo and forcing it to surface when reactants tanks are empty and power is off.

Offensive warheads can be exchanged with dummy ones for training, bolting them to the body of the torpedo, which remains totally unchanged. A warhead with a 600 lbs explosive load, triggered by a proximity pistol, was typically put on G7a torpedoes. The proximity pistol was made of four petals, which on contact with the target were bent towards a conductive metal ring around the nose cone of the torpedo, closing an electric circuit and triggering the explosion.

Leaving the torpedo room and the bunker is via the same way you came in.

Sea Mines & Area Control Center

But your visit is not over. As mentioned, the Herdla coastal battery hosts an area control center, with provision to manage target detection facilities and the minefields in the waters around Bergen.

This part was built in a facility strongly potentiated with tight doors, typical to the shockwave-proof military construction syllabus of the Cold War. A sequence of roomy vaults carved in the rock hides a number of containerized modules, together with an exhibition of sea mines and related apparatus.

Most notably, an L-type Mk 2 moored mine and a Mk 51 bottom mine are on display, with a understated control panel. The latter is actually a portable controller for triggering the mines. Already before WWII, sea mines were often put on the bottom of the sea in shallow waters, or moored in deeper waters, to control access inner waters, firths, ports, etc. The Germans made extensive use of this technique in Norway, and following WWII this strategy was inherited by Norway to protect its waters from (primarily) Soviet intrusion.

Despite contact mines were still popular in WWII, they have been surpassed and gradually replaced already in that age by proximity mines, based on noise and – especially – magnetic sensors. Today, proximity fuses activated by the magnetic field of ships or submarines passing nearby are standard technology. Onboard electronics allows to distinguish between the magnetic signature (i.e. fingerprint) of different ships, thus avoiding any issue for civilian or friendly traffic, and activating only against enemy shipping. Degaussing techniques – i.e. the ability of military ships to hide their signature – have forced to improve detection technology, which is today extremely sophisticated.

Furthermore, for the protection of ports and friendly waters, sea mines are typically controlled and triggered by hand, upon detection and localization of enemy shipping, by means of dedicated detection facilities on land or water. This improves precision and allows more flexible defensive-offensive tactics, since a human chain of command has control on the minefield, instead of a pre-determined computer program.

To trigger the mines, consoles like that on display are employed, where a trigger for each mine allows precise control over the minefield.

The first containerized control center hosts a similar, yet much more modern, dedicated console. Everything in this movable control center is very neat, and really looking like reactivation might take place in just moments! Of interest is also the situation map, covering the area around Herdla and the water inlet to Bergen.

A nearby container reveals berths and a small living area for stationing staff.

Yet another container hosts a complete situation room covering the area. Similar to the coastal battery in Stevnsfort, Denmark (see here), a careful eye was constantly overlooking the shipping in the area.

In the same container, a console for steering torpedoes, more modern than that previously seen in the torpedo battery, is on display.

All in all, Herdla is a one-of-a-kind destination, of primary interest for those interested in Cold War military history, enjoyable and easy to visit. Totally recommended for everybody with an interest in history, with much to see and learn for the kids as well.

Getting there & Visiting

Herdla fortress features an official visitor center with a large parking area, and amenities including a small restaurant and a shop. The official website is here. It can be reached about 27 miles north of central Bergen, roughly 45 minutes by car. The address is Herdla Museum, Herdla Fort, 5315 Herdla.

The torpedo battery and control bunker can be visited only on a guided tour. Visiting from abroad, we scheduled an appointment, and were shown around by the very knowledgeable guide Lars Ågren, a retired officer of the Royal Norwegian Navy. He joined the Navy in the late 1970s, in time to gain a substantial, hands-on Cold War experience during the final, high-tech part of that confrontation. He was promoted to tasks in the NATO headquarters in Belgium, later returning to Norway, and totaling more than 37 years in service. He is strongly involved in the management of the Herdla site. Chance is for you to embark on a visit with this guide, or other very competent guides who will satisfy the appetites of more committed war technicians and engineers, being capable of entertaining also the younger public as well.

A visit to the torpedo battery and control center may last about 1 hour. Seasonal changes to opening times may apply, as common in Northern Countries, therefore carefully check the website.

Bunker Kossa – A Preserved Cold War Military Bunker in the GDR

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The history of the underground installation in Kossa-Söllichau begins in the 1930s under Hitler’s rule.

In 1935, an affiliated company of the German chemicals giant WASAG, named Deutsche Sprengchemie Moschwig and devoted to the mass production of explosives for warfare use, had a new plant built in the rather uninhabited forest area between Leipzig and Wittenberg.

The plant, codenamed ‘Beech’ (or ‘Buche’ in German), was updated over the years and turned into a major production center for several models of shells and high-explosive charges. A primary contractor of the German Army, the company also held relevant patents, including one for hollow charge grenades.

By the end of WWII in April 1945, when the area fell under Soviet control and production was halted, the plant counted 3.600 employees, and had a production capacity of around 600.000 ammunitions per month. It had been provided with a dedicated road and railway connection, and built mostly underground, with several concrete bunkers surfacing from the grassy terrain around.

Following the Potsdam agreement (July 1945), the area was completely flattened by the hand of the Soviets, similar to some other production facilities in Germany. Demolition had been completed by the end of 1947. Following that, the area remained silent for more than a decade.

By the early 1960s, with the Cold War and rearmament in full swing, the the Nationale Volksarmee, or NVA – the short name of the Armed Forces of the GDR – had been long established as an ally of the Red Army. The latter was physically present in Germany with a huge number of troops and war material, having taken over many of the former German bases from WWII (see here or here for instance). However, the GDR clearly had its own Armed Forces, which actually could count on high-quality war material, typically either manufactured in Germany or supplied by the USSR. More and more locations – especially the most secluded and easy to hide – got surrounded by fences, and ended under the control of the NVA for many different purposes.

Deployed on the border with the West, and considered a reliable and well-trained partner by the Red Army, the NVA was included in the war plans conceived in Moscow, intended to unfold in the event of an open war with the neighbor NATO Countries. The NVA had two larger military districts, south of Berlin (III) and north of Berlin (V). In case of war, district III would give birth to a 3rd Army of mixed GDR/USSR forces, to quickly push towards the south-west into Federal Germany (heading to Koblenz), and from there to the Atlantic coast, to be reached in a matter of a few days.

The headquarter of the 3rd Army was in the so-called ‘Mosel’ bunker, an underground command facility near the town of Zwickau, today converted for an alternate use and not visible at all.

An alternate control site, which was also primarily involved in drills and training, was built in the area of the former ‘Beech’ installation, and took the name of ‘Bunkeranlage’ (i.e. bunker installation) Kossa-Söllichau. This site was prepared in the years 1976-79, and consisted mainly of 5 large interred bunkers on the same premises, capable of resisting to tactical nuclear blasts, with up-to-date systems for communication, and an ability to replicate war situations, so as to carry out realistic and complicated tactical simulations and drills. The staff was typically of 400.

Similar to the majority of military assets in Germany – and especially within the super-militarized ex-GDR – Kossa was incorporated in the Armed Forces of reunified Germany (1990), but was soon declared surplus, deactivated and handed over for civilian use.

A society of enthusiasts is today running this former facility, keeping it open for visitors on a regular basis. What makes Kossa an exceptional destination for both the general public and the most committed war tourist as well is the great state of conservation of the entire facility. As it can be seen in the following photographs, taken in Summer 2022, inside the bunkers it is possible to see not only the original structure, but most of the original communication systems, paneling, signs, furniture, lamps, toilets, lighting, wallpaper, etc. making the place a very vivid testimony of the Cold War years.

All in all, this is one of the best surviving specimens of bunkerized NVA sites, and definitely worth a visit for a rich in detail full immersion in the military technology and history of the Cold War years.

Sights

A visit to the Kossa site will start walking past the original inner gateway to the bunkerized part of the complex. The original wall going all around the entire military area has been partly removed, allowing to get direct access to the ‘core’ of the installation by car. Traces of the electrified fence running all around this inner part of the complex are still standing. The entrance to a bunker for the guards can be seen in this area, but this cannot be visited.

The core of the complex with the military bunkers is aligned along a single, mostly straight technical road, built with large concrete slabs. The road track today is the same as in the original pre-WWII complex, and for this reason, it was not camouflaged. Other buildings in the complex, an even the connection roads departing from the main one, are painted in camo coat, for deception in case of overflight by plane or satellite.

The ticket office today is hosted in a large technical building by the entrance. In this area there used to be canteens and other services.

Past the entrance to the bunker area, it is possible to visit five bunkers, which will be listed next.

Computer Bunker

Four out of five bunkers (the exception being the intelligence bunker, see later) are built around the same blueprint. They have a single entrance door, deceived under a small wooden hut. Access to the bunker is via a security and decontamination path. At first you see a big camera at the level of your face, and an intercom panel, all for identification. Next follows a sequence of tight doors, at a close distance from one another, producing three small tight compartments.

In case of nuclear/chemical contamination, faced in wartime, in the first compartment you could take an anti-poison kit, EP-68. Exemplars of this are still in place. In the next compartment you had to throw away all your clothes and belongings, which were put through a hatch to the side. In a third small compartment, you found a shower – a central passage in the decontamination process, even in case of exposition to nuclear events.

Through a last tight door, you could finally enter the clean area of the bunker. Here regular toilets and showers can be found, before going down one level, to the technical part.

Back then, there used to be three levels of air sealing. No air sealing, in regular, no-war/no-drill conditions, meant the decontamination procedure was not activated, and the bunker was ventilated with fresh air. In sealing conditions, typically at war but not under direct attack, the bunker was tight closed, and air was pumped from the outside through huge filtering canisters, purpose designed to stop both smoke and other gases, or poisonous chemicals. On the third level of air sealing, corresponding to an emergency condition (e.g. a direct attack), no air was pumped from the outside, and special filters capturing carbon dioxide allowed to carry on for a limited amount of time – reportedly a shorter time than granted by food or water storage.

Filters for the air conditioning system (sealing level 2) and for adsorbing carbon dioxide (sealing level 3) were made in the USSR. Those for carbon dioxide are scattered around the bunkers, and feature a rather vintage Soviet look, with a prominent five pointed star on top. The label carry the assembly year, in most cases the early 1970s.

Once downstairs, you can appreciate the construction of the bunker lower level, based on prefabricated concrete frames. The bunkers in Kossa were capable of resisting blasts typically from smaller tactical devices, and were ranked at the fifth strength level (level ‘E’), the first level being the strongest.

Here a few rooms are still perfectly preserved with computers, of which the most impressive is a mainframe AP-3, working with magnetic tape. The GDR could boast a top-notch electronic industry within the Eastern Bloc, and all consoles and electronics in Kossa bear local labels.

The purpose of the computers, deemed so relevant to create a bunker specifically for them, was the fast elaboration of all information from the war theater. The latter was both local and global, since thanks to the links reaching the site through the intelligence bunker (see later), information of any kind could be elaborated, allowing the constant updating of operation maps, and the monitoring of all war assets. In drills, the computation capacity of the the system allowed to simulate events, thus forming the core of war-game operations.

A small part of the same bunker, a kind of mezzanine, was designed as a small hospital – all exhibits are original here as well.

More items on display in this area include original dosimeters and gear for checking radiation levels – either GDR- or USSR-made. In the connecting corridors are an intercom and an alarm horn – just examples of the perfectly preserved material on display.

Command Bunker

The command bunker shares the general arrangement with the computer bunker. A full anti-chemical/biological warfare suit is displayed by the entrance, ahead of the decontamination facilities. This type of suit should be worn over regular garments, and made for a very uncomfortable, ultra-warm and suffocating top layer, which reportedly caused extreme sweating.

The focus here is a control room, with a large table and an operation map, as well as connections through several lines to the relevant information networks. On one side of the control room are desks for telephone operators. On another, watches and chronographs. Also interesting are two TV-scopes, which allowed to plot useful information especially in case of drills.

Examples of maps for military drills are scattered all around. Since war plans were all variations on the same theme – a quick attack pushing to the west – all corresponding maps feature this type of planned motion, from within the borders of the GDR to the FRG. The name of the drills can be seen clearly stated on the maps – for instance ‘Grenzschicht – 81’ from 1981.

Other rooms on the underground level feature very interesting examples of machinery for translating information to/from paper maps, even physical 3D maps with elevation!

Satellite or spy-plane images of the site are on display as well. The site of Kossa was reportedly not far from the southernmost of the three air corridors reaching West-Berlin from the FRG. However, even though the site was not unknown in the West, its purpose remained largely a guess for the duration of the Cold War – and likely so also for the local civilian population.

Technical Bunker

A major concern in the Cold War was that of the survival of the chain of command in the event of a total nuclear war. This led to the implementation of additional on-site plants, for self-sustained operations in case a nuclear explosion nearby made the area unsuitable for human life, or when links with the surroundings were lost. These plants included primarily power generators, typically large Diesel engines with their fuel tanks, and drinkable water tanks. As seen in the computer bunker, also breathable air was a major concern.

In the technical bunker in Kossa, similar in shape to the previous two, at least two large power generators can still be seen – and smelt… – on the underground level. Several electric parts for replacement are also there. Another room hosts large drinkable water tanks.

An interesting preserved office for a commanding officer still retains its original GDR wallpaper, and additional comfort is provided by a fake wood pavement.

Large electric cabinets take a big room, where instrumentation for radiation measurement is on display nearby.

Other particulars include a dial telephone with a reminder of the quick reaction numbers, including the Volkspolizei – the name of the People’s Police of the GDR, which can be seen on a label!

Intelligence Bunker

The intelligence bunker is way larger than the others in Kossa, and is also more articulated. Access was possible via two bulky metal gates, located at an underground level on the far ends of the bunker, and reached through truck-sized ramps from ground level.

Behind the door, a tunnel of prefabricated concrete allowed to store many vehicles – typically trucks, jeeps and trailers, including vehicles with communication functions.

To the interred back of the tunnel, a human sized hatch gave access to the pressurized, tight area of the bunker. This inner area, completely interred, is surrounded by a concrete case, built by a single pouring to avoid the creation of weak junctions, and such to withstand intense blasts.

Following a tight compartment, with an array of original air-filtering canisters on display, you get access to a long corridor, providing access to some rooms with technical gears for communication. Here communication with different levels of secrecy were managed, accessing all the existing links implemented in the years of construction within the GDR, and between all Countries of the Warsaw Pact and the USSR.

A first room is centered on a large console, with an original teleprinting device still in place – top-notch for the time. Still in use today in some businesses, teleprinting is a very reliable way of communicating, which is also less prone to interception than telephone.

An adjoining room managed contact with three wired systems of communication, working at increasing levels of encryption security, and used for transmitting routine or less-standard orders. These systems included S1 and SAS communication protocols. The corresponding transmitters/receivers – now very rare pieces of machinery – can be seen on display.

Encrypted incoming messages were sent to a special room, where they were translated in human language, before being internally forwarded to the command bunker. Similarly, encryption facilities were all in another room, where outbound communications were made ready for transmission.

An impressive technical room is stacked with communication electronics. The number of components is really high, and reflects a very high performance, achieved by means of top level, but relatively bulky, components from the 1970s.

A room in this bunker is dedicated to the ‘BARS’ system (‘БАРС’ in Russian), a troposphere (i.e. not wired) transmission system within all States in the Warsaw Pact and with the USSR. Beside an indigenous transmission protocol, the system made use of purpose-designed antennas, with easily deployable nodes put on wheeled trucks. An evoking, very interesting map of the fixed nodes of the system, in Russian, can still be seen on a wall. The desks for the operators of the system are just besides.

Another interesting item is the control panel of a micro-wave antenna, installed in Kossa at a shallow underground level, in an area which can still be located, corresponding to an inexplicable grassy lot along the main road in the site. This antenna system was apparently never used, on grounds of energy consumption and potential damages to other systems in the Kossa site.

Back outside, close to the intelligence bunker are an original weather station, placed nearby a radiation detection system – looking like a bell bolted to the ground. Examples of connection roads covered in camo paint can be seen in this area. Along the main road of the site, many ramps give access to semi-interred lots, where technical trucks used to be placed for operations.

An example of these trucks is a Soviet trailer for enemy signal jamming. This is well preserved both inside and outside. The label tells the construction year – 1986.

Museum Bunker

The last visitable bunker is similar in shape to the former three, and has been converted into a collection of items from the history of the old WASAG site, the NVA bunker and the Cold War.

Propaganda items from the GDR enrich this interesting collection, as well as rare photographs from the totally gone ‘Beech’ site originally developed in the Third Reich years. Also on display are detailed designs of the weapons produced here in WWII.

Getting there and Visiting

The Kossa installation can be easily reached by car, roughly 20 miles south of Wittenberg and 30 miles northeast of Leipzig. Exact location here.

The Kossa bunker is professionally managed by a dedicated Society. Their website is here. They speak only German, and the website is in German accordingly. Opening times are published for the season, and are basically in all weekends in the warm season. A synthetic leaflet in English can be obtained. However, the basic notions on this page may also help in getting much of the visit.

Two separate tickets can be purchased, one for a self-guided visit of the computer, technical and museum bunkers, and another for a guided visit of the command and intelligence bunkers. The guided tour is offered only once per day in German, in the early afternoon as of 2022.

A good strategy for a complete visit may be checking in during the morning, visiting the self-guided part, having a packed lunch, and taking the guided tour.

I followed that plan. This meant a stay of roughly five hours. The report on this page was obtained visiting the site together with Dr. Reiner Helling, who offered me a very detailed insight of the Kossa site, before we took the guided tour.

Photography is allowed everywhere. Flash/tripod generally not needed, at least with high-ISO sensors.

Possibly only cash accepted at the ticket counter.

Warbirds in Texas

The immense state of Texas is in the foreground of the panorama of historical aviation, thanks especially to the CAF – the Commemorative Air Force (website here) – which maintains and operates some of the Nation’s finest airworthy warbirds. This privately financed, non-profit organization feeds the programs of many airshows everywhere in the US, and carries out an invaluable function in preserving the legacy of many aircraft designers, manufacturers and military servicemen especially from WWII and early Cold War years.

The birth of the CAF in Texas is not just by chance. The Lone Star State bolsters an extremely long and rich tradition in aviation. Training airfields were established in Texas earlier and in a number greater than any other State during WWI. Fort Worth was the birthplace of one of todays few surviving major airlines in the US – American Airlines – back in the early 1930s.

Aircraft manufacturers associated with Texas include Consolidated – most of the iconic WWII B-24 Liberator bombers  were manufactured in Fort Worth – and North American. Consolidated later merged into Convair, owned by General Dynamics since the Fifties. Many aircraft of the Cold War era were actually manufactured in Fort Worth, including the record-breaking B-36 Peacemaker and B-58 Hustler, or the highly successful F-16 Fighting Falcon, still in service today in many air forces of the world, as well as a good deal of other types. As of today, Lockheed Martin and Bell Helicopters are both headquartered in Fort Worth.

Needless to recall, Houston has been one of the major focal points of world astronautics since the beginning of the space age.

In such a cultural setting, and considering the general financial wealth and the abundance of oil typical of Texas, it is not surprising that warbirds, even though fuel-thirsty and expensive to maintain, are present here in an exceptional concentration. Where possible, they are maintained in airworthy conditions, otherwise they are kept in great consideration in world-class air museums.

This post covers only four rich collections out of the many you can find in Texas. Two of them are ‘airworthy collections’, whereas in the other two warbirds are preserved for static display. Considered together, these four sites are probably already a good reason for an aviation-themed trip to Texas!

Photographs are from an extremely hot August 2018.

Navigate this post – click on links to scroll

Cavanaugh Flight Museum, Addison, TX

This renowned collection just west of downtown Dallas is split between a big group of exceptionally well-kept and airworthy prop-driven aircraft, and a number of warbirds on static display, some of them jet-powered. Website here.

The museum occupies a few hangars on a very busy general aviation airport (Addison Airport), where executive jets, helicopters and smaller propeller-driven aircraft operate all around the clock. 

The collection is hosted in four hangars and on an external apron where you can walk around freely. Not all aircraft are around here at any time, some having been flown out to some airshow, or for maintenance. In the first hangar you can find a handful of perfect airworthy replicas of WWI fighters from both sides of the front line.

Just besides are a North American B-25J-NC Mitchell, a ground strafing version of the famous medium-range bomber, and a veteran of WWII.

There are also a Vultee SNV-2 Valiant, a De Havilland Tiger Moth, a Ryan PT-22, all training planes from the Forties. In a corner you can see also a Piper L-4J, the military version of the J-3 Cub, and a Stinson L-5E, similar to the former in shape and mission type.

A Pitts Special aerobatic biplane is hanging from the ceiling in an inverted attitude.

The second hangar hosts a Fairchild PT-19 Cornell, an ubiquitous US military trainer from the Forties, in a distinctive light blue colorway with a yellow fin. Together with a yellow Stearman N2S-4 Kaydet biplane and a North American T-6 Texan, both good old trainers, they share the scene with a handful of stunningly preserved icons from WWII.

These include a Grumman F-4 Wildcat and a massive Grumman TBF Avenger – both in the dark blue colorway of the US Navy. 

Just besides are a licensed version of the Messerschmitt Bf-109G of Nazi Germany built by Hispano Aircraft in Spain, and a nice replica of a Soviet Yakovlev Yak-3M.

Cross the apron, you can find some more great classics from the Forties. There are an immaculate Curtiss P-40 Warhawk, and two North American T-28 Trojan trainers in the colors of the Navy. In the background you can spot a sizable Heinkel He-111 twin, a licensed version manufactured by CASA in Spain.

The last hangar shelters an aggressive Douglas A-1H Skyraider in the colors of the USAF. This version of the massive single-prop features a single seat and is especially reinforced for increased bomb load to carry on ground attack missions.

This is surrounded by a series of pretty famous jet attack aircraft, including a McDonnell-Douglas F-4C Phantom II, a North American F-86 Sabre and a Grumman F-9F-2B Panther with foldable wings and the distinctive blue and red colors of the Navy. 

There are also two classic fighters from WWII, a Supermarine Spitfire Mk.VIII and a North American P-51D Mustang. The latter is so polished that you can clearly see your image reflected in its skin panels!

On the outside apron you can see parked three Soviet-made jets from WWII – a MiG-15 UTI and a MiG-17 in the colors of the Red Army, and a more recent MiG-21 in the colors of the North Vietnamese Air Force. Close by, a PZL Iskra trainer, once ubiquitous in the former Soviet bloc.

There are also a Lockheed F-104A Starfighter, a Grumman S-2F-1 Tracker patrol aircraft of the Navy with folded wings, a Republic F-105 Thunderchief awaiting restoration, and a Vought A-7 Corsair II.

Scattered around the museum are also a few helicopters, and even a Sherman tank.

During my visit I could see two movements of aircraft taxiing out for take-off. The first was a Cessna O-2 Skymaster, a model extensively used in Vietnam for FAC missions. This has been refurbished with fake underwing rockets. You can see it in the vid below.

The second was a Douglas EA-1E Skyraider in gray Navy colors. This is the early warning version, designed for a crew of three and originally mounting a dedicated radar platform. You can watch (and hear!) the difficult startup of the huge Wright radial engine – it was around 100°F outside! –  and the aircraft taxiing with folded wings. Unfolding starts only seconds before the aircraft gets out of sight.

Forth Worth Aviation Museum, Fort Worth, TX

This museum hosts a little but highly valuable collection of US aircraft on static display. The museum is totally volunteer-run. These folks are doing an exceptional job preserving their aircraft. As you can see from the pictures, there are many exemplars being actively refurbished in a hangar to the back. The museum is located on the southeast corner of Fort Worth Meacham general aviation airport. Website here.

All aircraft are preserved outside, but you get access to the museum grounds through a lounge, stacked with wonderful memorabilia, technical specimens, paintings and rare pictures.

A showcase is devoted to the Convair B-58 Hustler, a record-setting Mach 2 bomber from the Fifties, produced in slightly more than 100 exemplars, which were all manufactured in Fort Worth. This iconic delta wing, four-engined jet was exceptional for the number of ‘firsts’. Among them, it was the first aircraft with a computerized flight control system and an integrated navigation platform. You can spot part of this analog computer, a bulky stack of black metal parts.

There are scale models of the Cessna O-2 Skymaster, and based on the themes of the merchandise in the museum shop there is actually a predilection for that aircraft and the Rockwell OV-10 Bronco, which had a similar mission, i.e. observation, reconnaissance and forward air controller (FAC).

Actually, among the first aircraft you meet outside there is a Cessna Skymaster. I was so lucky to visit on August 19th, the National Aviation Day, when the museum recruited many veterans to stay besides their respective aircraft and tell their story. I spent a little time with Doc Lambert, Nail 66, one of the pilots of FAC missions over Vietnam, Laos and Cambodia, who allowed me to have a long look inside his Skymaster. Among the testimonies of his war operations, he told me some anecdotes. Most FAC missions were performed with only the pilot on board, which caused a pretty high workload. Furthermore, the aircraft was not equipped to counteract any weapon shooting up from the ground. This meant that a typical flight was an uninterrupted sequence of strong turns to avoid being hit from ground fire, something that also helped in searching for grounded crews, or enemies hiding in the jungle. As a result, you had to be accustomed to such way of flying, or a strong sense of nausea would come to disturb you pretty soon. This regularly happened with visiting high-ranking USAF staff on demonstration flights…

The museum owns another Skymaster, which was undergoing refurbishment in a black livery at the time of my visit, similarly to an operational USMC version of the OV-10 Bronco.

Best preserved aircraft on the front row, which are clearly visible from the public road ahead of the museum, include a Lockheed T-33 Shooting Star training aircraft, and a Northrop F-5 Tiger II in a fake Soviet camouflage once used by aggressors in flight academies.

On the same row you can spot a Douglas A-4 Skyhawk, a type in service since the early Sixties, and shown here painted in the colors of the Navy. The beautifully restored Vought A-7B Corsair II nearby was deployed to Vietnam three times with VA-25 on board USS Ticonderoga and USS Ranger.

Next is a massive Republic F-105D Thunderchief, a very nice example of this Mach 2 fighter-bomber from the early Sixties. This very aircraft was stationed in Europe, tasked with carrying tactical nuclear ordnance. The roomy bomb bay designed for the scope can be observed from inside. After more than ten years in the USAF, this aircraft went on to serve with the Air National Guard in the Seventies, and was finally disposed of in 1983.

Right besides the F-105 you find a McDonnell-Douglas F-4C Phantom II in the colors of the USMC Aviation. This very aircraft is a Vietnam veteran, and it was later converted into a target drone, but luckily never used in this role. The collection features another F-4, again a Vietnam veteran.

Cutting edge technology from the late Seventies is represented by a Grumman F-14D Tomcat. This plane is a war veteran, it flew missions during Desert Storm and over Afghanistan, and it was often used on FAC missions and for training at home. It was retired in 2007.

The Tomcat is sitting next to an imposing Sikorsky CH-53 Sea Stallion helicopter. This too is a Vietnam veteran, and suffered also some damage on combat duty. The avionics of this big helicopter are totally analog. Next to it you can find a Convair TF-102 Delta Dagger interceptor built for combat and training. This very aircraft was flown by President George W. Bush.

Other training aircraft on display from different ages include a Vultee BT-13 Valiant single-prop, a Cessna T-37B Tweet and a Douglas TA-4 Skyhawk. The latter was used extensively for training purposes on board USS Lexington.

Two totally authentic Navy veterans are a Vought F-8 Crusader and a McDonnell-Douglas F/A 18 Hornet. The first spent its early career on board USS Lexington and USS Ranger in multiple cruises in the Western Pacific during the Kennedy and Johnson administrations, being later assigned to several Naval Air Stations along its more than 20 years long career. The Hornet was deployed operationally from the late Eighties on board USS Midway and later on USS Independence, and spent its final years in the Blue Angels – of which you see the vivid livery today – being finally retired in 2009.

A special feature of this museum is the only existing mock-up of the McDonnell-Douglas/General Dynamics A-12 Avenger II. Development of this attack aircraft was carried on in the Eighties and finally canceled by the Government. The flying wing configuration and the widespread adoption of composite materials made this platform unique, but also ahead of its times. This design was penalized by subsequent mass increases which caused its cancellation, but it represented a first chance to investigate concepts and technologies later adopted for operational aircraft flying today. The mock-up used to reside in the Fort Worth plant of General Dynamics, from where it made its way to the museum.

Other Cold War planes include a General Dynamics F-111E Aardvark, built in Fort Worth and assigned to Japan and Europe along its long operational career spanning the years 1969-90, and a Rockwell OV-10 Bronco formerly in service with the USAF.

Lone Star Flight Museum, Houston, TX

This stunning museum is located on the premises of the Ellington Field Joint Reserve Base. The installation is centered on a collection of mainly airworthy warbirds and classic planes.. It is really top quality, surely among the best displays of the kind in the Nation. Besides that, they offer a well-designed, recently-made, fresh presentation of the history of aviation in Texas, as well as didactic labs explaining the principles of flight through experiments and simulators. You can find their website here.

There are also meeting rooms and galleries for art exhibitions. Really a place to be for enthusiasts of ‘flying oldies’!

The collection is not huge, but it boasts a good number of notable aircraft still flying today. In the first hangar you can find many iconic designs from the Thirties and Forties. There are a North American T-6 Texan and two beautiful Stearman PT-17 Kaydet trainers. 

A centerpiece of the collection is an extraordinary Republic P-47 Thunderbolt – the fastest propeller driven aircraft ever – in a majestic colorway from WWII years.

At the center of the hangar, much room is taken by an airworthy example of the mighty Boeing B-17 Flying Fortress. Together with a few other models, this formed the backbone of the US bombing capacity during WWII. Stunningly restored, this aircraft can be booked for pleasure flights!

Further aircraft on display in this hangar are a Piper L-4H, its civil counterpart, the J-3 Cub, and a similarly looking Stinson OY-1 Sentinel in military colors. 

A true rarity is a stylish Beechcraft D-17 ‘Staggerwing’. This aircraft was conceived in the Thirties as one of the first ‘executive aircraft’, with good handling capabilities, and nice interiors to provide good comfort on board. Despite all efforts, visibility from the front windscreen is probably not very good…

A Grumman F-6F Hellcat, an authentic warbird from WWII, painted in the colors of the Navy, a Fairchild trainer and an ubiquitous general aviation Beechcraft Baron complete the exhibition in the first hangar.

The second hangar hosts both prop-driven and jet-driven aircraft, most of them airworthy or otherwise being restored. The most classic designs in this room are a North American B-25 Mitchell medium-range bomber, a Douglas DC-3, a Douglas SBD Dauntless and a Grumman TBM Avenger.

Interestingly, the Mitchell is the only in the world painted in the colors of the Doolittle Raiders. This very aircraft did not see action during WWII, but later being flown by the CIA on covert missions, it was involved in JFK’s failed attempt to invade Cuba, overflying the Bay of Pigs in the days of operations.

The DC-3 flew extensively with American Airlines and later TransTexas Airways – later to be ingested by Continental, hence the livery – and is still airworthy today. Both the SBD and TBM on display are from WWII days, and are still flying today after restoration work.

While possibly disappearing in front of its illustrious colleagues in this hangar, an honest Cessna T-41 Mescalero represents here the training branch of the armed forces. This is basically the military version of the C-172, probably the aircraft manufactured in the highest numbers in history, and a platform where pilots of all sorts spend part of their training still today. The colors are very nice, and this aircraft is the cheapest you can rent for a ride at the Lone Star Flight Museum.

In the same hangar you can find also (slightly) more modern aircraft. There are three jet-powered aircraft from the early Cold War period. One is a Lockheed T-33A trainer, a very successful aircraft sold in high numbers in the late Forties. More impressing is an authentic Soviet MiG-15, which spent its years in service with the Chinese Air Force and saw action in Korea, opposing the F-86A in the first jet vs. jet campaign in history.

A Polish-built MiG-17 in an incredible ‘Red Banner’ celebration colorway completes the trio.

Close to the exit you can find a beautifully restored Douglas A-1D Skyraider. This aircraft is airworthy, and is an authentic veteran of both the Korean and Vietnam war, where it reportedly sustained extensive damage but was not shot down.

There are also a Sikorsky helicopter used for commuting to oil platforms off the coast of Texas, and a Cobra attack helicopter.

Outside, as a gate guardian on one of the access roads leading to the base, you can spot a NASA Boeing 707 used for zero-gravity flights on behalf of Johnson Space Center.

USS Lexington, Corpus Christi, TX

‘Lady Lex’ – as it was affectionately called by its crews along its illustrious career – is an Essex class WWII aircraft carrier, and with 40 years of active service is by far the one that enjoyed the longest service life. Since the late Sixties it operated as a training platform, where many pilots of the Navy learned how to perform a carrier landing. 

Today this majestic vessel is permanently moored on the bay of Corpus Christi, where it is home to a fascinating history museum covering her long operational history. The corresponding website is here.

Highlights of the visit are first of all the ship’s bridge, from where you can also profit from a vantage view of the flight deck and of the bay – and of the thunderstorms afflicting the area in mid-August, of course.

Similarly interesting are the lower deck where aircraft used to be stored. This is huge, and some historic aircraft can be found here as part of a number of small exhibitions.

The forward compartments recall the attack of Pearl Harbor in 1941, and display also some artifacts from the time, including pieces of the ill-fated battleship Arizona, and a banner belonging to the older CV-2 Lexington – CV-16 being the number of this vessel in Navy inventory.

An unusual topic is movies – some great scenes of ‘Pearl Harbor’ Hollywood drama starring Ben Affleck and Alec Baldwin were shot on USS Lexington, including an apparently genuine take-off of a B-25 from the flight deck! Other motion pictures partly shot on board Lexington are ‘Midway’ and the series ‘War and remembrance’.

Part of the quarters of high-ranking staff can be visited, including a canteen. These were typically used only when the ship was moored. 

Interestingly, it is possible to walk along the side decks of the ship, where anti-aircraft guns can be found and closely inspected.

Finally, the flight deck hosts a number of aircraft, representing many types in service with the Navy, most of which found their way on the modernized flight deck of this old carrier, during combat assignment or on duty as a training vessel. Being exposed to a salty atmosphere and to the intense sun of the Texan coast, these aircraft have been somewhat coated, which gives them a ‘mock-up appearance’, but this is just an impression, for these aircraft are real and on loan from the National Museum of Naval Aviation.

The aircraft to the stern of the ship are all pretty classic, and represent types which were actually flown from USS Lexington. They include the Douglas TA-4 Skyhawk trainer, the early Cold War Grumman F9F-8T Cougar fighter jet and the loosely similar McDonnell F2H-2 Banshee. This was designed as a fighter, but it was selected to cover primarily the reconnaissance role.

A workhorse which saw combat in Vietnam and all down to the First Gulf War is the Grumman A-6 Intruder, a tactical bomber with good penetration and low-level attack qualities. Differently from the Grumman F-14 Tomcat nearby to the bow of the ship, the Intruder could be operated from the relatively small deck USS Lexington.

The Vought A-7 Corsair II attack aircraft and the North American T-2C Buckeye trainer both saw action from the deck of the Lady Lex. The Douglas A-3 Skywarrior is possibly the heaviest type to be operated from Navy carriers on a regular basis, and it is here represented by a tanker version in a blue colorway. Also this type was actually operated from the Lexington.

 

 

 

STASI Prisons and Headquarters in Berlin and the GDR

Heading to Berlin or the former GDR? Looking for traces of the Cold War open for a visit?

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Among the most unequivocal signs of the oppressive communist dictatorship in the former German Democratic Republic – ‘GDR’ or ‘DDR’ in German – are probably the many buildings once operated by the STASI, the German cousin of the well-known Soviet KGB.

Being a state security service by its very name – STASI stands for ‘STAat SIcherheit’, or state security -, this organization was responsible for the capillary control over the behavior of the citizens of the GDR, to the aim of counteracting any threat to the communist rule. It was mainly composed of a para-military staff and of an extensive network of informers – so extensive that actually about 1 out of 180 in Eastern Germany worked for the STASI, while by comparison in the USSR 1 out of 595 worked for the KGB. The main goal of this agency was keeping the statu quo, hence any suspect behavior of East-German citizens, deemed subversive with respect to the communist rule, was reported, investigated and usually suppressed.

People found guilty of acts against the State – i.e. against the communist government – were often sentenced to years of imprisonment. This meant that prisons and camps flourished in the GDR, as people got arrested and at least kept for interrogation just for having received western newspapers or having colored their rooms with posters of American pop singers. How the STASI came to know of similar ‘violations’ was by means of informers, who triggered secret investigations carried out with ‘James Bond gear’, like cameras and microphones hidden in coat buttons and bags. Microphones and cameras were also usually installed in the walls, chandeliers and doors of the houses of suspected subjects.

This huge institution was among the most feared and hated – as well as expensive to run – in the GDR, and soon after the reopening of the border and the demolition of the wall in Berlin in 1989 many of its buildings were occupied by the population. To deny responsibility in the unfair trial, imprisonment and confinement of many citizens, the staff of the STASI began ‘burning’ its archives immediately, but they were so extensive that this rapidly turned out to be impossible. The STASI was disbanded among the first governmental agencies of the GDR in the early months of 1990, even before the two halves of Germany were merged. Finally the archives were made publicly available during the process of the German reunification. Many people came to know they had been carefully observed and spied in every movement during their everyday life.

Today, some of the most prominent buildings once operated by the STASI are open to the public and represent an interesting and worrying memento of this chapter of the history of Germany. The following photographs are from some such sites I visited over the years from 2013 to 2023.

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STASI Headquarters, Berlin-Lichtenberg

The headquarters of the STASI occupied an extensive citadel composed of many big, multi-storey buildings. Like the KGB, the tasks of the STASI weren’t limited to internal state security, but also to border protection – a very serious business in Eastern Germany, as you can see from another page of this site dedicated to the German inner border – and espionage activities abroad. The various directorates occupied their respective buildings in the citadel. The place is in a semi-peripheral district of former East Berlin named Lichtenberg.

The main building hosts a museum of central relevance on the topic, where you can find much data about the history and the impressive size of this agency, as well as spy gear – for instance mimetic microphones for listening to conversations in private houses. The stories of some of the victims of the communist surveillance machine are also reported. Envelope-opening devices and rags for preserving the odor of those arrested for watchdogs are displayed in showcases.

Probably the highlight of the museum is the apartment and office of Erich Mielke, the director of the STASI from 1957 – well before the wall was erected in Berlin – up to the dissolution of the GDR. Many original directional offices have been preserved and nowadays can be visited.

The place is very evocative and retains much of the disturbing ‘GDR atmosphere’, typical to this and other similar installations. The number of visitors is much lower than close to Checkpoint Charlie and the DDR museum near the Berliner Dom, which are mostly cheesy tourist attractions with comparatively little content. On the contrary, in this museum you can still easily perceive the commitment of the GDR goverment towards its own survival, and the proportion of the oppressive apparatus that was created to this aim – here you clearly understand the STASI was a serious business and changed the life of many people.

After visiting the museum in the central building you may have a look around to the exterior of other buildings in the citadel, today mostly unused, abandoned or partially occupied by private businesses – I guess the place still retains for many people a very negative aura.

Getting there and moving around

Today the citadel can be reached very conveniently by car or with the U5 (between the stops Magdalenen Strasse and Frankfurter Allee). The museum is fairly modern and well presented, but as of 2015 when I visited the ticket could be paid only cash and some explanations were in German only. Inside the museum there is no air conditioning, and it can be very hot and uncomfortable in summer. Parking is not a problem in front of the main entrance or nearby. Website here.

STASI Prison and Restricted Area, Berlin-Hohenschönhausen

The second largest quarters of the STASI are located in yet another outer district of former East Berlin. Old photographs of the area clearly show that this part of the town was interdicted to visitors not connected with the business of the STASI – there used to be fences and gates all around, cutting some of the roads entering the district. Besides some directorates and administrative buildings, this citadel hosted a prison and a labor camp. The former was the main STASI prison in East Berlin, and those who were arrested on account of suspect activities against the State were usually carried here, where they had to withstand interrogations.

This place is really grim and appalling. It looks like the staff of the prison had just left. Everything from what you see to the smell of the cells, offices and interrogation rooms is totally evocative of the original GDR atmosphere.

The STASI became the owner of the place in 1951, after the Soviets, who had managed the occupied territory directly after the German capitulation in 1945, left control of many administrative functions following the creation of the GDR. Under the Soviet rule, in the years of Stalin between 1945 and 1951, a labor camp was set up here and the main building of the prison – a former canteen for Nazi staff – opened for business. More than 20’000 people passed through this installation between 1945 and 1951, many of them on their way to deportation to the USSR.

Under the control of the STASI, the camp was dedicated to non-political prisoners, where the prison, enlarged in more instances as the STASI citadel was growing up, was for the ‘enemies of the State’. More than 20’000 people were imprisoned here between 1951 and 1990.

The place can be visited only on guided tours, offered on a regular basis also in English. Following the tour you can see various imprisonment cells. The worst – and really inhumane – from the times of the Soviets are in the basement of the main building, with no windows and no ventilation, where many people were crushed together waiting for interrogation or deportation.

The majority of the cells date from the era of the GDR, and are more modern. As the main business of the prison was that of extorting confessions, the prisoners were progressively brought in a state of psychological prostration. Preventing any form of communication was part of the treatment, so most cells for newly arrested people were for one person only. To isolate those arrested even more, when moving from the cell to the interrogation rooms and back the wardens observed special red and green lights, telling when there was somebody else in the corridors. This way the inmate would not see anybody except for the warden and the officer who interrogated him during all his or her stay in the prison.

Padded cells with straitjackets like in asylums were used in the process of extorting confessions, when the inmates were treated with drugs causing hallucinations and loss of physical control. These can be seen in the basement of one of the buildings.

Also visible are some cells with open top for spending half a hour per day in open air.

An interesting item presented in the exhibition is a minivan that was used for taking people quietly to the prison. The appearance and markings are those of a normal cargo van for transporting goods, whereas the interior is structured with micro-cells for arrested people.

Interrogation rooms are aligned on a corridor, and are extremely essential, featuring a shabby furniture. Greasy traces on the wallpaper and the smell of old fake leather heated by the sun is make the original atmosphere come alive.

A further wing is where a clinic for inmates was located. The clinic was of good level, with much technical instrumentation to manage several regular or emergency situations. The office of the director of this wing is another example of pure East German design. Most notably, the once omnipotent Erich Mielke appears to have been interned here following his arrest after 1989.

A one-of-a-kind exhibit is a railway truck for inmates. Besides the rather uncomfortable compartment design, with small chairs in a very little space, this transport was made really inhumane through the lack of air conditioning, the windows with bars and even a white glass, which deliberately created disorientation. These trains were artificially put on the lowest priority, so as to make traveling a painstaking experience for inmates.

The memorial is not central, so only those really interested in the history of the GDR, and of East Berlin and the STASI usually come here. Nonetheless, it is managed like a good level international museum, with guided tours, facilities for groups and a serious bookshop. Before taking the tour you are offered a movie telling the history of the prison in brief and showing the testimonies of former inmates. All in all a very interesting – and instructive – experience, surely worth a detour from the more touristic districts.

After visiting the prison, you may have a look around to the other buildings in this citadel. You can find a map in a cheap but interesting booklet they sell in the bookshop (‘The prohibited district’, by Erler and Knabe).

Getting there and moving around

The correct address of the prison building is Genslerstraße 66, Berlin. You can reach it easily by car. The neighborhood is primarily residential and not central, so parking won’t be a problem. If you have not a car, you can arrive conveniently with the tram line M5 from the most central districts. The correct stop is Werneuchener Strasse, and from there it’s about 0.4 miles to the gate of the prison. Website here.

STASI Prison Lindenstrasse, Potsdam

Behind an elegant façade like many others you can find in central Potsdam there is a prison comparable in size to the ‘main’ prison in Berlin Hohenschönhausen described above, and mostly unknown to the general public crowding this small and beautiful historical town.

This building was used as a prison by the Kaiser, the Nazis, the Soviets and finally the GDR. It was renovated and modified in many stages during its long history, and during WWII under the Nazi rule, some sections of the courthouse in central Berlin were transferred here, when the original buildings of the Nazi courthouse got damaged as a result of Allied air raids.

Differently from Hohenschönhausen, the prison in Potsdam is not part of a ‘citadel’, even though the KGB headquarters in the GDR were not far – actually they can be found close to Schloss Cecilienhof, Potsdam, now partly converted to luxury apartments and villas.

Another difference with respect to Hohenschönhausen is the style of the building, which dates back to older times. This is reflected in the plan and in many details of the construction, which at least from the exterior is very elegant.

Inside you can find Soviet cells in the basement – also here the most inhumane – and other cells packed along narrow corridors on several floors. In the inner courtyard there is a central block of open top cells for ‘recreation’, and traces of the original cameras and surveillance systems.

Something you may appreciate is the fact that you can visit the place on your own. Paneling with data or telling the stories of former inmates are totally in German, but you are given a leaflet with explanations and a map of the place at the entrance. Also a few original interrogation rooms have been preserved and can be seen.

The entry price is very reduced, so visiting is of course a must for the committed tourist, and interesting also for the general public. The place is ‘mimetic’ and not much advertised, so you won’t find the usual flocks of visitors, unlike the royal estates in Potsdam… Much recommended.

Getting there and moving around

The precise address is Lindenstrasse 54, Potsdam. It is in central Potsdam, so you may park at your convenience for visiting the district and have a stop there if you like. Similarly, if you are coming with the public transport system just go to the central district and walk to the place. Website here.

STASI Pre-Trial Prison, Rostock

Similarly to the prison in Potsdam, the anonymity of the façade of this building in central Rostock, placed to the back of a section of the courthouse still working today, is really deceiving. A prison capable of hosting more than 100 inmates can be reached today via a small door leading mainly to the offices of the faculty of the local university. Once inside the building you will notice a worrying fence on the side of the stairs going to the first floor, where you can get access to the prison.

Besides the many cells, it is possible to find a very interesting exhibition on the history of the GDR and of the STASI, with much data and stories from the time. Also many artifacts can be found, like spy gear, rags for preserving the odor of inmates for watchdogs to make capture easier, state bonds used to pay informers, and more.

The main function of the prison was that of keeping those arrested for interrogation until they were sentenced. More than 4000 people spent some time in this prison, mainly for ideological crimes, in the years of the GDR.

The place can be visited for free with an audio guide also in English. Some parts, including the open-top cells outside and the rigor cells in the basement can be visited only in a guided tour – as far as I understood, these are offered in German only.

On the top floor you can see an interesting exhibition on people who escaped or tried to flee the GDR by sea.

Getting there and moving around

Centrally located in Rostock – a lively city on the coast of the Baltic Sea – at a walking distance from Rosengarten. If you are moving by car, you can park on Hermannstrasse, and reach the door to the back of the courthouse block (opposite a small market). The door is heavy, so press it hard, it may be open even if it looks closed. Website here.

STASI Maximum Security Prison ‘Bautzen II’, Bautzen

Originally designed as a pre-trial and short-term court jail by the local government, the prison of Bautzen II was erected under the Kaiser to the back of the courthouse in the homonym town in the southeastern corner of Saxony, today very close to the border with both Poland and the Czech Republic. A larger penitentiary, named Bautzen I and originally conceived as a juvenile jail, was built around the same time in town.

With the advent of the Nazi dictatorship, both facilities began to be exploited for the prosecution of political dissidents, or to isolate elements of ‘inferior races’. Violence, intimidation and extorted confessions began to be the rule. Both branches of the prison of Bautzen fell under Stalin’s control at the end of WWII, and this corresponded to an exceptional increase in the number of inmates, which included a substantial share of former Nazi staff and opponents of the Soviet regime.

After the creation of the GDR, the facilities in Bautzen went on working as primary centers for the confinement of political prisoners, together making for possibly the largest detention center in the country. The smaller jail of Bautzen II, with slightly more than 200 single cells, was turned into a maximum security prison intended for the most dangerous ‘subversive elements’ of the whole state. While Bautzen I is still an active state prison of todays Federal Germany, Bautzen II has been opened to the public as a memorial.

The dreary access from outside is through three gates, and this adds to the perception of the place as really ‘no hope’.

Similarly to the prison in Potsdam (see above), Bautzen II can be toured on a self-guided basis, without a group. Most parts of the prison are opened, and several cells can be accessed.

Some of the cells retain the original furniture, even shabbier than the usual communist standard. The metal staircase in the middle of the prison building allows to better appreciate the size.

Besides rigor cells with additional bars and an incredibly small walkable area, some groups of cells are separated from others, with armored doors splitting the corridors in contiguous isolated sections. This was possibly a special feature of this maximum security prison. You can experience an unreal silence when sitting in a cell closing both the doors of the corridor and of the cell.

There are also some ‘common areas’ for inmates to work and stay, and an external courtyard divided in sectors, to allow inmates to spend some time open air, but without the chance to meet or see each other.

Getting there and moving around

The prison of Bautzen II is open as a national monument, a website with full information about visiting is here. I noticed that there are descriptions in German only throughout the prison, so you would better go prepared at least on the history of the place – starting for instance from the website – to get the most from your visit. The location is Waigangstrasse 8a, which is behind the courthouse of Bautzen, 0.8 miles to the east of the historical town center, conveniently reachable walking from the railway station and also by car. The area around the courthouse is mainly residential and parking can be found easily. Bautzen I is still today an active regular detention facility and cannot be visited.

A vital center of the Sorbs, an etnic group of Saxony and Brandenburg recognized by the German Federal Government, the town of Bautzen is nice to visit and rich of historical content. It is about 45 miles east of Dresden, and bolsters a picturesque, perfectly refurbished town center with medieval to baroque architectural elements.

STASI Headquarters, Dresden

The STASI headquarters and prison in Dresden have been developed starting 1945, originally as a prison for the Soviet NKVD (later KGB), on the premises of a former factory not far from the river Elbe and the historical district of the town – which would lay destroyed for decades following air raids in WWII. Similar to the prison in Lindenstrasse, Potsdam (see above), the underground floor of the former factory building was turned into a prison, with provision for a number of very basic cells typical to Stalin’s era, aligned on a narrow corridor.

Until the facility was handed over to the newly-formed GDR in 1952, the Soviets interned here mostly German citizens accused of cooperation with the defunct Nazi regime, as well as subversive elements, unfriendly with the Soviet controlling forces. As usual within a dictatorship, indictment was largely arbitrary and sentences extremely harsh – following arrest, most people were deported to forced labor camps of the Gulag system in the USSR, some were brought to Moscow to be hanged, and many were sent to provisional camps established in the ‘Soviet occupation zone’, later to become the territory of the GDR.

In this part of the exhibition it is possible to step in most of the cells, very small and essential.

A room is dedicated to the Gulag system, whereas another is a memorial for those taken to the Dresden prison and who reportedly did not survive the ordeal of the Soviet detention system, or where sentenced to death on the base of political reasons.

Also visible are some service rooms, like the bathrooms and rooms for the guards.

Along the corridor an emergency cable could be pressed by the guards at any time when in distress, triggering an alarm. From this part of the prison it was possible to access a inner courtyard.

Concurrently with the handing-over to the STASI, the facility was expanded, with offices and a modern multi-storey prison building.

Access for those arrested was via an inconspicuous wooden gate. An apparently innocent cargo van was employed for arrests. It can be checked out and it reveals provision for several segregated micro-cells inside. Once disembarked from the van, some prisoners may have had to wait for the prison check-in process inside mini-cells. Temperature in this area used to be – and still is – terribly hot in the summer.

Once inside, prisoners had to undress and undergo an accurate inspection in the check-in room. They were photographed for records in a special room, where they sat on a chair which was moved by the camera operator to obtain portraits at specific angles. Then prisoners were assigned dresses and slippers for their stay.

This prison acted as a remand (i.e. pre-trial) prison, with 44 cells on 4 levels.

Cells were for one, two or three people. Single cells were not customary from the 1970s on, except for rigor cells.

An example of the latter can be seen, with a small chair bolted to the ground and no windows. A special cell was that for writing letters, something that was possible only at prescribed intervals (e.g. once per week) and in this special room – obviously, all communications were checked and censored by the STASI. This cell features a small table, a chair, and a lavatory.

An uncommonly ‘comfortable’ cell was employed for foreign prisoners, who included those who had tried to help GDR citizens in their escape attempt, and who for some reason had got caught by the STASI. These cells had a window allowing a view of the sky – not possible through the special windows of regular cells – and a larger iron bed, instead of a narrow wooden berth.

Separated boxes in a walled courtyard outside were employed for letting the prisoners spend some minutes per day in the open air.

Walking the prison building you may notice that most of it is still original, including the purely-GDR linoleum floor, and the alarm system. The heavy curtains make the building dark and oppressing. The temperature in the summer is also very hot. The building is very silent, much resembling the original asylum-like feeling.

A routine operation in a remand prison was interrogation of the prisoners. Prisoners were insistently interrogated by STASI staff before formalizing an indictment. For the purpose, they were taken to the top floor of the building, along a few flights of stairs, up to the the interrogation rooms. Interestingly, the door giving access to this ‘bureaucratic’ part of the facility still bear seals (now reopened), put in the days of the revolution following the demolition of the wall in Berlin in 1989. The offices of the STASI, with material and archives, were sealed for criminal investigation.

Today, in this area a few original relics from the STASI operations can be found, like photographic film, nominal folders, stamps, keys, etc.

One interrogation room is still visible, whereas many others have been converted and are today employed for thematic workshops by the organization running the memorial.

As of 2023, the memorial is undergoing restoration, with the reopening of a larger part of the offices planned soon. Momentarily, it is possible to see the original grand auditorium of the STASI, a full-scale theater, with a typical GDR decor and even an original audiovisual apparatus. It is hard to imagine what kind of people could attend some symposium in an elegant room like this, just 50 ft away from prisoners confined in cells, non-criminals confined mostly only because suspected of having some arbitrarily-defined ‘subversive ideas’.

The quarters of the old NKVD prison are linked to the more modern prison building by a long underground corridor.

Getting there and moving around

The former STASI headquarter in Dresden is run as a memorial by a very active society, supported by various preservation bodies and associations. A professional website with much information, including a leaflet with a description of your visit in English, can be found here. A visit may easily take 1.5-2 hours for an interested subject. Many parts of the facility are accurately preserved and make for a very evocative memento. Furthermore, permanent and temporary exhibitions add to the experience and documentary value.

Visiting is possible on a self-guided basis, with explanatory booklets in many languages including English lent for the duration of your visit.

The memorial is located northeast of the historical district of Dresden, right on the northern bank of the river Elbe. The exact address is Bautzner Straße 112a, 01099 Dresden. However, access by car to the inside parking is possible only at these coordinates, (51.06688926262786, 13.782718227181237). Since access is from a major road where a U-turn is impossible, and the entrance to the parking is somewhat ahead of the official address, it is worth employing these coordinates for your nav, otherwise you might be missing the entrance to the parking, being forced to a pretty long tour of ‘one ways’ and ‘no turns’ before you get back to your intended destination.

Memorial ‘In der Runden Ecke’ – STASI Headquarters, Leipzig

Similar to its cousin in Berlin-Lichtenberg, the former headquarters of the STASI in Leipzig has been opened as a memorial. In this case, the building was not made on purpose, but converted from a pre-existing one. A decorated, elegant palace in the city center was chosen for the local brain of the repressive apparatus. The building features an angled facade, since the name ‘on the round corner’ – ‘in der Runden Ecke’ in German.

The entrance hall to the former headquarters has retained much of its original appearance.

The main part of the exhibition is immediately reached through the original reception office, which has been left willingly untouched since the pre-1989 era – including now dead CC-cameras, and two elaborated majolica murals with emblems of the STASI and some decorations.

The exhibition takes the ground floor of a wing of the building, i.e. only a small part of the original site. The office of a clerk has been mothballed preserving at most its original, shabby appearance, with a portrait of Honecker.

In an adjacent room, many rigs for covert mail and communication interception and inspection activities are displayed. These range from steam-pumping envelope openers, to fake postal stamps from Federal Germany, or even from abroad (to send false communications), and even fancier machines for reproducing signatures, looking inside parcels, etc. – every design betraying a really paranoid attention to details, and a true waste of exceptional engineering abilities.

A complete cell and photo studio – for mugshots – from the now demolished STASI prison in Leipzig has been spared for this exhibition, not much dissimilar from others on this web page (see above).

More artifacts on display include audio and image gathering stuff, ranging from micro cameras and recorders, to exceptionally compact, high-precision zoom lenses. Archived rags with the smell of repression victims in case of escape – for dogs – are another specimen from the STASI crazy inventory.

A room is devoted to the STASI huge paper archive, and to the silly, titanic effort to destroy the evidence of years of illegal spying activity as quick as possible, following the re-opening of the border. The solidified slime obtained from paper fragments is on display. Some very evocative pictures show the immense Leipzig archive and its conspicuous remains after the destruction attempt.

Two more rooms tell about the immediate post-WWII history in Leipzig, with pictures from 1945 with Nazi officials who committed suicide, as well as from the first stage of Allied occupation and Soviet administration – before the GDR was founded.

An interesting collection of artifacts concerning the Soviet-GDR friendship and alliance is really evocative of a luckily bygone era.

Finally, the corridor is full of interesting pictures, telling about the disinformation role of the STASI, border patrolling, and many other businesses this overpowered criminal organization was in charge of.

The building is today also seat for an agency managing the old STASI archive for historical purposes. Furthermore, the first floor and the elegant stairs leading to the top can be toured, with some display cases showing attractive Soviet-era artifacts.

The first floor in particular must have been an official meeting/reception area, or a director’s office. Part of the original furniture is still there, including a mural with the head of Dzerzhinsky, the founder of the Soviet Ceka back in Lenin’s time, and an inspirational figure for all fanatics of ‘state security’ in the communist world – an activity which was a synonym for violent prosecution of free will.

Getting there and moving around

The memorial is on the border of the pedestrian area in Leipzig city center. It is modestly publicized, but thanks to its accessibility, it might be easily included in a standard visit to historical Leipzig, and it is significantly populated by tourists. Entrance is free of charge, and its professional website is here. Despite the small size, for an interested subject visiting might take 2 hours or more. Free pictures are allowed, and an audio guide in English allows to get much from the visit even for people not speaking German.

STASI Bunker, Machern

The bunker in Machern is an underground facility built for the STASI in 1968-72 as an emergency headquarter, for keeping the chain of command and coordinate operations in case of a potential crisis. It represents a specimen of the level of commitment of the GDR government with respect to the preservation of control, and a witness of the huge budget made available to this particular ministry, inextricably linked to the government itself and pivotal in the survival of the oppressive GDR communist regime over its entire life span.

The crisis in Prague in 1968 possibly triggered the build up of a similar underground network by the STASI, which customarily operated in secrecy. The very existence of the bunker, located some 30 minutes driving from central Leipzig, was unknown to most. The inconspicuous visible part of the facility was deceived in one of the lots in a district of free-time homes for employees of a public company. It was discovered only following the 1989 revolution and the abolition of the STASI.

Compared to underground military installations, either of the NVA or the Red Army, the bunker is rather compact. However, it had provisions for about 100 staff in case of crisis, with a moderate ability to resist military-level attacks, including facing a nuclear war scenario.

The visit starts by accessing the grounds, where an unassuming little country villa of the GDR can be found, which acts as a check-in point, and as a ticket office.

Soon you may notice the presence of unusual gear on the premises. These include houses and training gear for dogs, cables for allowing leashed watchdogs along a pre-assigned watch pattern, a concrete sentry box, fire extinguishing gear, piles of fuel barrels, a deck for repairing vehicles, and a rather big grey hangar.

The latter hides the blast-proof double entrance to the underground bunker. Before stepping in however, it is possible to check out an impressive amount of spare parts aligned on shelves, with literally tons of interesting military-grade material – most of them clearly marked as Soviet manufacture. Many mystery boxes with writing in Russian can be seen. Rolls of barbed wire, metal nets, camo blankets, and other material for sealing and deception can be seen together with more technical material, including technical instrumentation.

A small collection of memorabilia from the STASI years is shown on site, as well as a permanent exhibition with technical schemes and organization details.

Access to the underground bunker is via a horizontal armored door and through a long flight of stairs. An airlock with two tight doors was installed for making the place blast-proof and seal it in case of nuclear attack.

Dosimeters and showers for decontamination can be found close to the entrances – there are two of them, both inside the same hangar.

The bunker was mainly intended as an intelligence center for crisis management. The flow information was guaranteed by a number of communication systems and facilities. Manned stations can still be seen in a number.

Beside communication facilities, the bunker features sleeping quarters for the STASI staff, a kitchen/canteen area, and a few offices and private quarters for the decision-makers – senior STASI officers. These offices offer a reasonable level of comfort, typical to the the bunkers from the era (see for instance Kossa and the Polish headquarters near Wolin, but a similar level of comfort could be encountered also on the western side of the Iron Curtain, like here in Britain).

The bunker is built mainly around a square corridor, with an array of long and narrow rooms, each dedicated to a specific function.

Soviet material can be found everywhere, including air filters and heaters.

Different from the previous sites bound to the grim and disturbing history of the STASI and of the communist-led repression in the GDR, this bunker offers an interesting perspective into the para-military domestic activity of this former backbone of the single-party government of that country.

Getting there and moving around

The STASI bunker-museum in Machern is a branch of the STASI memorial in Leipzig (see above).  An updated web page on this bunker can be found in the German version of the website of the Leipzig memorial (here), with updated information on the planned dates for a visit. The bunker is regularly open only on a few dates over the year, which are published in advance.

The visit allows to access the grounds, where explanatory panels are available in German, as well as the storage hangar and bunker. In the hangar, visitors are offered a short introductory video (in German). Afterwards, it is possible to visit the hangar and the bunker on a self-guided basis. Reservation is not required, but access is regulated on site by gathering visitors to form small groups, who are admitted to the bunker one by one to avoid overcrowding. Time in the bunker is more than enough to check-out the items on display, taking all the pictures. In all, a visit to this installation may take about 1 hour once on site.

Please note that they accept only cash for the ticket.

The location is in the countryside, about 10 miles northeast of Leipzig along the road B6. It is easy to reach only with a car or similar. There is a large parking there (51.376119908957726, 12.633996194227596), also serving the nature recreation area around. The entrance to the bunker can be reached from the parking with a .5 miles walk along a local road here (51.37857212168658, 12.644452664748663). No parking is possible on that road. Please note that the position corresponding to the bunker marked on Google Maps is largely inaccurate.

The bunker is located very close to the former Soviet base of Brandis/Waldpolenz (see here).

KGB Prison and Headquarters, Potsdam

This memorial is strictly speaking an outlier in this chapter, since it was never a STASI facility. Since their arrival in late April 1945, the Soviets installed a major intelligence and counter-intelligence center in Potsdam. An entire district was severed from the rest of this fashionable imperial town – which had fallen in the hands of the Soviets and later in the GDR. Its perimeter was fenced, the area provided with a guarded gate, and interdicted to everybody except authorized Soviet staff.

In it there were residential buildings, as well as central offices of the secret intelligence and security services of the Soviet Union in the heart of the GDR, and immediately on the border with West Berlin.

Today this exclusive residential area has been returned to its original function, except for a memorial, which has been prepared in the former prison originally built by the Soviets in a pre-existing, relatively little and unassuming building.

The Soviet secret services employed the prison from 1945 to the early 1950s as a remand prison for former Nazi collaborators, but also for German citizens considered dangerous or unreliable for the Soviet system. They were typically sentenced to years of forced labors and deported to the Gulag systems. When the STASI was created and took over the surveillance of GDR citizens, this prison was employed primarily for Soviet citizens considered as dissidents, including military staff. It is estimated that the Soviet population in the GDR totalled half million people in the late 1980s, therefore surveillance was not an easy task for the Soviets, requiring a dedicate apparatus with its own facilities.

The citadel and the prison in it went on operating until 1994, among the latest facilities to be relinquished by the then-Russian government.

The largely arbitrary indictment and sentencing of German citizens interned in this prison by the inhumane bureaucratic Soviet government of the years of Stalin indeed made many victims. Therefore, this place is primarily a memorial.

The shabbiness of the entire construction, typical to Soviet KGB prisons (see for instance here) is really striking. The visits starts on the first floor, where a number of cells can be seen. A rigor cell can be recognized by the lack of any light or ventilation. The ground was typically flooded with cold water, and the walls are covered in rough plaster, so that the prisoner could not sit on the ground nor lean against the wall.

On the top floor, former interrogation rooms today host a very interesting exhibition, with rich and detailed information in multiple languages including Russian and English. They cover the activity of Soviet secret services in the ‘Soviet occupation zone’, and later in the GDR and the Soviet enclaves in it. The brutal treatment reserved to many Germans, typically in the immediate post-WWII years under Stalin’s rule, is witnessed through striking documents, accounts and photographs. Among those sentenced to death were even schoolboys who did not want to learn Russian.

A focus is put on the structure of the law system of the communist dictatorship in the USSR, as well as on the mechanism of interrogations – including accounts of Soviet defectors.

Original memorabilia from the place include coats, special armbands for the staff authorized to enter the citadel, as well as original documents from the various ages of operation of the place.

In the basement are group cells intended for many people on their way to deportation. Graffiti from inmates can still be seen in the plaster.

A rigor cell which did not allow standing is also part of the exhibition.

A memorial to the victims of Soviet hardship has been installed on a side wall, whereas a modern visitor center completes the exhibition.

A thematic walk in the former Soviet citadel highlights through explanatory panels the original function of some of these buildings. Now returned to their original imperial splendor, they carry unsuspected grim memories of the communist era. Among the most notable features is the relic of a former small monument. Looking carefully, some of the houses still bear numbers on the facade according to the Soviet-style numbering of town blocks.

Getting there and moving around

The memorial is called Gedenk‑ und Begegnungsstätte Leistikowstraße Potsdam, and its professionally-run website is here. The address is Leistikowstraße 1 – 14469 Potsdam. Many parking opportunities on site. Reaching is easy also with public transport from Berlin. The prison is very close to the Cecilienhof palace.

The visit is on a self-guided basis, with much information available through the website, including options for smartphone-guided tour to the prison and to the former citadel. The permanent exhibition (in many languages) is rich and interesting, a detailed visit to the prison and exhibition may take up to 1 hour 15 minutes. A walk in the former Soviet citadel, today very enjoyable, may add 30-40 minutes for the more committed visitor.