Forst Zinna – A Soviet Ghost Base in Germany

The area of Jüterbog, about one hour driving south of downtown Berlin, boasts a long military tradition since well before the Cold War. Yet the most astonishing density of military installations in this region was reached in the years of the Third Reich, and later in the decades of Soviet occupation, lasting until the early 1990s.

Many chapters of this website are devoted to the subject of Soviet occupation in the communist German Democratic Republic (GDR), with portraits of many military bases over its former territory (see for instance this chapter, and links therein). These either belonged to the NVA, the armed forces of the GDR, or the Red Army of the Soviet Union, which retained a significant military presence in the GDR all along the Cold War, despite this country being formally independent.

This chapter deals with one of such military bases, Forst Zinna. This base stands out in the East German panoram, due to the intriguing history of the place on one side, but also thanks to the plenty of interesting sights you may find there (as of mid-2019) – whereas many other similar abandoned installations have been wiped out by local governments, sometimes to be converted into something else.

The large military base at Forst Zinna was founded at the dawn of the Third Reich in the mid-1930s, and named after the führer, Adolf Hitler. The core was constituted by a set of solid multi-storey buildings, aligned along at least four parallel rows about a third of a mile in length, built in a typical old-German style. These hosted barracks and training rooms, used by an artillery and transportation school. There were also many service buildings, like canteens, sport and administration facilities. The base was operated by the Wehrmacht until the end of WWII, when the region was conquered by the Red Army. Thanks to its design, featuring large halls and common spaces, it was selected immediately after WWII to host an academy for future German functionaries of the yet-to-be-founded GDR (or DDR, the German acronym for the GDR).

The place was decorated and refurbished reflecting the style of the new communist owners and the cultural paradigms enforced by Stalin. Just before the latter’s death, in February 1953 the academy was transferred, and Forst Zinna was handed over to the Soviet army. They further enlarged the base, adding storage areas, small farms for food production, technical buildings, plus over the years some new housing.

The end of the story is similar to many military areas in the GDR. The Soviets finally left, the bases were too many for reunified Germany in a post-Cold War scenario, so most of them were either demolished, converted or forgotten. Forst Zinna has been largely demolished, but some of the buildings, built before the end of WWII, are reportedly registered as landmarks. The whole area is sitting in the wild vegetation and is not really looked after, but much is still there and makes for a mysterious memento of past vicissitudes Germany managed to survive. To the war historian and urbex fanatic as well, Forst Zinna has really much in store.

Photographs in this post were collected during two long visits in July and August 2019.

Sights

The base occupies a roughly square area, with a side about .8 miles long. For making the description easier, its premises can be divided into four ideal sectors.

The barracks area to the southwest, where you also find an easy access to the base, is populated with the oldest buildings, erected well before WWII. These comprise living quarters, school-like buildings, canteens, administration buildings, at least one gym, a theater, an open-air movie theater, a prison, and more. There are also a couple of clearly distinguishable Soviet-built apartment buildings, much more recent and taller than their neighbors.

To the north of the base you can find a sizable area which likely hosted a huge deposit for vehicles, as well as other technical facilities. Here demolition works have stricken hard, and today only a few buildings are still in place. Yet these include what appears as a centralized power/hot water supply plant, as well as large services for the troops, which make for interesting pictures.

In the third sector to the northeast, a large U-shaped technical building hosts a unique room with Soviet memorabilia. In this area you can find also a swimming pool, a football field with nice Soviet murals, and much dumped military material. Also here demolition works must have been carried out at an early post-Soviet stage, as vegetation has already grown over the debris.

Finally, to the west of the perimeter but next to it, you can find a ghost monument from soviet times.

You can find aerial pictures of the Forst Zinna base in this chapter.

Southwestern Area – Most of the Barracks and Older Buildings

Accessing the base via the southwestern corner, you immediately meet the the first original buildings from the pre-WWII period. They are painted in a nice dark yellow.

From the pics you can appreciate the length of the blocks in this part of the base. Among other spectral items, former notice-boards for activities in the base, like the movie theater, or for the latest news.

The perimeter is marked by a concrete wall running very close to one of the rows of buildings. The walls appear decorated with didactic explanations of something technical.

Entering the buildings, you may find tons of derelict memorabilia items, including hand-written registers, book covers, etc., all in Russian. Something in no shortage in the base is surely restrooms! There are really many.

The actual function of the buildings needs to be guessed, but some must have been used as schools – or even kindergartens – at least in Soviet times, when modern housing was added to the base also for the families of the troops. This theory maybe supported by the type of decoration you sometimes find in these buildings.

Walking in some of the taller yellow buildings, likely hosting also some living areas in the years of operation, you soon perceive the style is clearly pre-Soviet – too elaborated for USSR standard, and typically German. The age of the buildings can be judged also by the heating system, based on tiled stoves fed with coal. Traces of coal can still be seen in the corridors, where the stoves were loaded!

The stairs are particularly nice in style. You are not encouraged to climb upstairs, especially in those buildings were the roof is leaking. Under the roof you can appreciate the wooden structure supporting the external tiles.

Some rooms of these buildings used to host other services, like for instance a – likely – tailor, or uniform shop, as you can see from the furniture and from the explanatory sign.

Close to the southwestern corner of the base you can find two twin apartment buildings in a typical shabby Soviet style, possibly dating to the 1970s.

The size of the apartments is incredibly small! They are apparently small one-room unities, with an extra-small kitchenette and a microscopical bathroom. On the plus side, all have a balcony on the facade.

Leftovers of the original furniture are abundant here – as you may see, everything is extremely poor quality. In some of the bathrooms you may find some stickers decorating the wall, and even traces of toilet paper holders!

The ‘Soviet ghost’ aura here is extremely intense, as everyday items can be found everywhere, like the troops had just left. In the backyard of these buildings you can find remains of a playground, broken bicycles, and even traces of hanging wires!

Just ahead of these buildings, you can see a mystery one-storey tunnel structure made of a set of progressively smaller sections – making it look like a weird ‘telescopic building’. It is clearly from a relatively late age, maybe one of the last additions to the complex.

One of the blocks adjoining the taller buildings to the south is a small (likely) elementary school, with a nice indoor gym, as well as a fenced outdoor playground. Soviet playground designers made extensive use of old tires. Here they are even painted in bright colors!

North of the school, you meet an array of smaller buildings along the perimeter of the base, but their function remains to guess.

The long rows of yellow barracks are interspersed with areas or buildings dedicated to special functions. For instance, at some point you can find a rather large open-air training area, with many types of ladders, balance axes, leapfrogs and more training rigs still in place, albeit completely surrounded by wild vegetation.

Another item is apparently a school building, with a typical academy-style front facade, and classrooms inside. By this building there is also a kind of small firefighting post (not sure), which includes a cylinder bell with a nice sound – really weird, complementing the unreal silence of this place!

There are at least two large canteen buildings. In the first you find very big kitchen rooms, with large ventilation hoods and stoves still in place.

There are also storage rooms, some with wooden trays, maybe for bread, or maybe for putting trays after lunch.

In the second canteen, even larger, you can find also remains of a Soviet decorated wall, with traces of writings and small paintings.

Other special buildings, close to one of the canteens, include a nice greenhouse.

There is also a relatively large open-air movie theater, with a covered stage and uncovered seats for the public. The benches are gone, but their legs remain. The machine room to the back is in a really bad shape.

To one side of the open-air movie theater you can find one of the strangest items in the base. It is an area severed from the others by a serious barbed-wire fence – still difficult to go through! In this kind of ‘private garden’ you can find two explanatory signs in Cyrillic, and what appear to be gym gear for fight training. There is also as a small monument – or a grave? – composed of a glass obelisk planted on a delimited area on the ground.

Even weirder, the adjoining building features very small windows… an exploration of this building allows to clarify its purpose – it used to be a prison, the small windows being on the sidewalls of the cells! There are four cells at least, with peepholes in the doors. Everything very similar in style to the Soviet prison in Karosta, Latvia, except you can’t experience the thrill of sleeping in ‘safely’ – see this post!

Not far from the fenced courtyard you can find a naive wall painting portraying two tanks transported on railway trolleys. One of the troopers has been stricken by an electric shock, as apparently his rifle touched the high-voltage cables over the railway – oh no!

There are also sport-themed murals on a fence. A building nearby looks like a garage for a small vans or for cars, maybe a mechanics shop or similar. There is also a storage room with nice wooden paneling.

The garden + prison ensemble may be interpreted as a military-police-run part of the base, likely an unwelcoming sector of the installation in its heyday! Not far you can find also an academy building with large halls, including a former gym. The vocation of the place is witnessed by a sport-themed mural.

Another special building close by the mystery quarters probably used to be a club, with a kitschy decorated room, and another gym area, with another interesting sport-themed mural. Some of the less explicitly Soviet murals may date to the years immediately after WWII, when Forst Zinna was a training academy for future key-figures of the ‘political life’ (?) of the GDR.

Another interesting building can be found to the northern end of this sector of the base. Some decorative details look more modern than the age of the base. It looks like there was a kind of glass-covered patio, or a large greenhouse.

A highlight of the northern part of this sector is the large theater building. Unfortunately, the roof of the theater room has recently collapsed completely, destroying everything below it. Yet the foyer was spared, with one of the most famous Soviet murals in the GDR. Considering the style, it must date from a relatively recent Soviet age, even though the military gear in the portrait is not really recent.

Still in place is the coat hangers area, with some inscription in Russian on the wall nearby. The building – well, what remains of it – is likely from pre-WWII times.

To the northwestern end of the barracks sector, cross the main former access road to the base, you can find traces of Soviet monuments, with stylized troopers, a huge concrete Red Banner flag and information signs, everything in a rather bad shape, and attacked by the wild vegetation.

Nearby you can find an administration building, nice in style, but again in a very bad shape, and with a partly-collapsed roof. Yet this building hosts something of great interest for pickier explorers and Cold War historians. A couple of rooms likely hosted a logistic or travel service, and here you can find at least three well-preserved maps of the USSR!

The first is a smaller-scale topographic map, and is the worst conserved. The corresponding office was really shabby, with the lowest quality furniture. What appears interesting here is a set of electric power metering rigs or switches, with hand-written labeling in German – maybe from the years of Wehrmacht tenancy?

The second map is a very big political map of the USSR, with all the Soviet Socialist Republics. You may spend an hour looking at all the particulars! The map is from 1971. You can find places like Voroshilovgrad, Leningrad, Chernobyl, Riga, Poliarnyi, Semipalatinsk, Gorkij, Leninakan, all within the boundaries of the Soviet Union – names strongly bound to real world or fiction plots from the Cold War! Some of these locations have even changed their names!

The third map is an even more unique portrait of the railway lines of the USSR, presented in great detail – the map, from 1981, occupies an entire wall. Here you can also find interesting names and places, like Tashkent, Gori – Stalin’s birthplace in Georgia, see this chapter – or Borjomi, where one of the most famous water springs of the Czarist Empire is still active, producing mineral water you can find everywhere in the former USSR still today.

To end with this part, between the administration building and the theater, you can find a really mysterious underground bunker-like structure. This faces to the ground in an area fenced with barbed wire and protected by a firing turret with loopholes. Maybe a deposit for rifles or smaller weapons?

Northern Area – Warehouses and Technical Buildings

This area was likely devoted to the storage of heavy vehicles – trucks, tanks, movable cannons, who knows? As you can see from Google pictures on the web, until at least 2009 there used to be many garage buildings here. As said, this is the area most hit by demolition works, and what you find today is a large flat area, with some buildings surviving close to the perimeter, marked by the original concrete outer wall of the base.

Luckily for explorers, a few surviving buildings make for interesting sights. An item you can easily spot is a tall brick chimney. At the base of this you can find a – likely – power station for the base. The burners are gone, but you can see extensive piping, and boilers for hot water.

The piping from the boilers – made in the GDR in 1973 – are labeled in Russian, and there are also several posters and signs in Cyrillic. Not far from the main rooms, there is a small booth for a technician constantly supervising the plant.

Close by the power station building, large service buildings are shrouded in the wild vegetation. One of them was completely dedicated to bathrooms. The most visible remains are the changing rooms, with some hangers with small mirrors still in place, and the showers, still partly intact!

North of these buildings, you meet a long concrete pool with slides for vehicles at the two far ends. It used to carry out some industrial function – amphibious vehicle testing?

Other surviving buildings in this area include a very tall one, possibly a maintenance hangar, as well as some of the – originally many – garages.

Close by the inner fence dividing this sector from the barracks part of the base, you can find a smaller garage with some books scattered around. There is also a fire emergency station with writings in Russian.

Northeastern Area – Sporting Facilities and Mystery U-Shaped Building

In this area, technically not separated from the southwestern one with the barracks, you can find some non-residential buildings of great interest.

Possibly the construction with the largest area in the whole base, a big U-shaped building with what appear to be large workshops or garages can be found close to the northeastern corner of the base, just inside the perimeter concrete wall.

Inside the halls of this building, you can find many interesting Soviet remains – posts, writings, murals,… The function of these many rooms has really to be guessed. Some feature doors so small that entering with a vehicle would be impossible. Others still preserve the smell of Diesel oil.

An unexpected surprise in this mystery building is a kind of commemoration-information area. The geometry of the rooms is very strange, with a small unlighted corridor leading you in. An incredible Soviet mural with hammer and sickle can be found in this corridor.

In the two adjoining rooms you can find traces of many interesting panels, arranged in a kind of ‘Soviet temple’ architecture. There are photographs of soldiers during training activities, aircraft, tanks, portraits of some high-ranking staff, and much more.

There are also artistically valuable Soviet-themed comics characters! Some big photographs portray the base of Forst Zinna in the days of operation. Unfortunately, big parts of the pics are missing, but you can recognize the typical German architecture of the buildings. The appearance of the base used to be different, without all the trees you find today!

The next room was possibly centered on the explanation of some Soviet industrial activity. The room is dominated by a scaled model of the USSR, with some locations – including Chernobyl nuclear power-plant, find it between Kiev and Minsk! – pinpointed on the map.

The walls of the quarters where these strange rooms can be found are covered in old newspapers. There are also historical pictures of the Soviet monument in Khatyn and other locations in Belarus (see here).

Close by the U-shaped building, moving north you can find a strange storage, with cases for – apparently – rifles.

To the northern end, there is an open-air swimming pool. It lies at the center of a sporting area, close to the outer concrete wall of the base. The pool makes for very good photo opportunities. It is hard to tell whether this was built for the Wehrmacht or later for the Soviets. It is large, and two springboards are more or less still in place.

The service building nearby appears to date from old times. Yet the pool was much used by the Soviets, as shown by the number of panels written in Russian, including regulations, one with a ‘START’ sign, another to show the temperature of water!

There are also typically Soviet decorations, like an Olympics symbol made of metal gearwheels.

Close to the pool, you can find a ghost football field. You can see a goal and a referee ladder, both imprisoned by the newly grown trees!

Next to the football field, the wall of the base is decorated with some nice sport-themed Soviet murals.

Leaving the base behind when walking further northeast, you come across former trenches, and a dump of light material, including many Soviet boots, gas masks, spades, bottles, and so on. They are likely what remains of flattened buildings in this area.

Soviet Monument

Back to the perimeter road where the main gate to the base is, to the opposite side of the main access road you can find an interesting monumental ensemble hidden in the trees. This was probably composed of a small square, today barely recognizable due to the overgrown vegetation, bordered to the far end by a set of concrete slabs adorned with typical soviet themes and by a tall concrete spine.

The latter part is still there, almost untouched. The spine used to be colored, as testified by the scant remnants of red paint over the surface. Also a painted emblem can be found to the back of the cube suspended halfway along the spine.

The slabs feature a head of Lenin, seen from the side, together with the ship Aurora. Others feature a dam, the monument to the Russian motherland in Volgograd (formerly Stalingrad), and the monument to the soviet cosmonauts in Moscow, among other items.

Getting there & Moving around

Reaching the premises of Forst Zinna is not difficult. The site is five minutes northeast of Jüterbog, about 1 hour driving south of Berlin, and is recognized by normal GPS navs. Jüterbog has also a railway station, so you may come by train+MTB.

The official status of the site is uncertain. There are a few prohibition signs ahead of the official gate, but much less than in other similar locations in Germany, and some of the buildings are reportedly listed, albeit not really looked after. The real threat for a visit is in the condition of the base. Most buildings are in a really bad shape, and entering is at your own risk. As said, some of the most visited parts have finally collapsed – luckily, nobody was in at the wrong time, but be sure you know what you are doing and take all precautions.

Forst Zinna is rather popular among German explorers, plus the area is a natural preserve now, so you will likely meet somebody during the exploration of the site, especially during the week-end. If you go on working days instead, you are likely to be alone all of the time, which may add to the atmosphere.

The size of the base is very large. These photographs were taken over three visits, for a total of about 10 hours, and at least on third of the buildings have been totally overlooked or not explored thoroughly.

The Border Forts of Czechoslovakia Against Nazi Germany

The Maginot line – a line of forts running along the French border with Italy, Switzerland, Germany and Belgium – is a widely known example of military engineering from the inter-war period (see this chapter). The adopted construction technique, based on reinforced concrete pillboxes with walls several feet thick, half interred to decrease visibility from above, field cannons and anti-tank defensive guns, witnesses the great consideration given to tanks and aircraft as attack weapons.

Due to the fast movements typical to the new strategy of the German army since the beginning of WWII, the Maginot line is mainly remembered for having not been involved in any major action, and having being largely bypassed. As a matter of fact, the German opted for a bypass also because the line was in place, so it was not as ineffective as it is often thought.

What is possibly even less known is that similar defensive lines were built in earnest in other European countries, before and even during WWII, after the Maginot line had failed to stop the invading German army. The enormous Salpa line, built by Finland against the Soviet Union, was probably the last and most effective to be completed (see this chapter). The Stalin line, prepared by the Soviets against Germany in Belarus, is another example. Another country who invested much in this type of deterrent was Czechoslovakia.

To understand the drivers of the design of the huge line of forts envisaged by the Czechoslovakian government of the mid-1930s, one should take a look at a map of Europe from the time. After the defeat of WWI Germany had managed to keep significant parts of todays Poland. The border between Germany and Poland ran close to Gdansk – aka Danzig in German -, and the province of Lower Silesia with the town of Wroclav – Breslau in German – were undisputed German territory. This means that todays border between the Czech Republic and Poland used to be actually a border between Czechoslovakia and Germany in the years before WWII.

With the turmoil preceding the infamous Munich Agreement and Nazi Germany claiming the right to control ‘Sudetenland’ – a large part of the peripheral territories of todays Czech Republic – in 1937 the Czechoslovakian government quickly started the construction of a huge system of forts to protect the border.

The concept was pretty similar to that of the Maginot line, with extensive underground tunnels to shelter soldiers and ammos, facing to the surface with reinforced concrete bunkers with different purposes, including observation, artillery shelling with field cannons, mutual protection with short range anti-tank cannons, machine guns and grenade-throwing tubes. There were also bunkers for accessing the tunnel system with resupply. About 10’000 light fortifications were actually built, more than 200 heavy fortified positions and a handful of heavy artillery positions.

The geopolitical situation in Europe got worse quickly in 1938, with the annexation of Austria in spring and finally the Munich Agreement, which caused the dissolution of Czechoslovakia. As a result of this internationally approved de facto German invasion, the works on the defense line were halted by the Wehrmacht. A relevant part of the hard construction had been completed, but most of the bunkers were still unarmed or lacked some software – air filters, ammo supplies, everyday items for the troops, etc. – and were not serviceable.

Most of the ironworks, including especially all heavy-metal turrets, were salvaged by the Germans. Some of the cannons found their way to the Atlantic Wall. The most massive concrete bunkers were used to test new weapons. As a result, the majority of the most sizable structures are still today in a partly damaged shape.

Some of the bunkers came to life again in the 1970s, when re-founded Czechoslovakia, that time a satellite country of the USSR living under a repressive and hard communist dictatorship, started a low-paced conversion of some of the structures into nuclear shelters for top ranks of the military and political hierarchies.

Notwithstanding these incidents, todays Czech Republic is duly proud of the significant work which was carried out in the difficult late Thirties. Very much was done for the little time available, and the quality of the design and construction is remarkable. While most of the sites are open only rarely, there are some where you can step inside and enjoy an interesting visit. This chapter covers with photographs and text five larger fortified complexes along this anti-German defensive line, from a two-days visit taken in August 2018.

Map

The following map shows the highlights of each of the five sites listed in this chapter. Please zoom in for greater detail. For the Bouda fort I could not spot and pinpoint on the map all the pillboxes you can easily visit from the outside – this are covered by vegetation.

Navigate this post – click on links to scroll

Sights

Stachelberg

The Stachelberg site is located about three miles north of the small city of Trutnov. The fort should have consisted of a main entrance and peripheral shooting positions, some of them linked by underground tunnels, to defend the area of the Giant Mountains. Construction works were terminated much before completion, so the surface bunkers forming the ensemble are actually not connected. Yet the major installation, a bulky infantry positions with provision for anti-tank artillery, provides access to an extensive system of half-prepared tunnels, which gives you a clear picture of the size and capacity of the complex.

The site is open to the public, and the ticket office can be found right inside this huge major bunker. From the outside, the volume of this pillbox is particularly stunning. Also interesting are the anti-tank obstacles, which used to be placed along the border line and between the forts, to trap invading columns in a position where anti-tank guns could be most effective.

This multi-level bunker is also place for a little museum on the fortifications, mainly based on explicative panels and scaled models of weapons and of the entire bunker complex. It covers the history of the fortifications, and explains most technical features of their construction. There are no weapons or other software – they were either not installed before the construction works were stopped, or salvaged by the Germans.

The tunnels can be visited on a guided tour only, starting from inside the main bunker with a descent of several tens of feet along a flight of stairs, originally made at the time of construction. The tunnels unfold on the sides of a major, perfectly straight initial track. Some of the lateral halls, intended to store ammos as well as for sleeping the troops, are very large and close to completion, whereas others are just sketched.

The tunnels were dug in the rock with the help of explosives. The next step in the construction works would have been a layer of concrete from the pavement up to the ceiling of the tunnels. This is present today only close to the entry point, at the bottom of the access stairs.

There are at least other five smaller pillboxes which have been preserved to some extent in the Stachelberg complex. They are accessible with different timetables, and do not provide access to the underground – by design, some of them should have.

One of the pillboxes has been colored in a very bright camouflage. I could not find out whether this used to be the standard, but it looks pretty unusual and not really mimetic… There are also refurbished connecting trenches between the smaller bunkers.

The concrete base of a never built bunker can be found not far from the parking area.

Getting there and moving around

Getting close to the complex is really easy, the area is very scenic and a popular destination skiing, and for nature trail hiking in summer. There is a parking on road N.300 from where the museum-fort can be reached with an almost flat, 0.3 miles track.

The complex can be toured on the outside without restrictions. The main bunker has opening times, and the underground part can be toured only with a guide. The guide speaks Czech, but you are provided a leaflet with explanations in English, upon request. The tour takes about 30 minutes, and is offered on a regular basis, with several entries per day. They warn you about the inside temperature, but I found it pretty easy to bear with normal summer clothes. Website here, but you will need some Google translation to find the info you need.

Voda, Brezinka and Lom

These three forts are actually parts of the same system, built on the eastern end of the town of Nachod-Beloves, the major center in a local valley ending in Poland. Three items in the complex are typically accessible to the public.

The one closest to the town, on the bottom of the valley, is the Voda bunker. This is very convenient to reach, and is basically composed of a preserved typical infantry pillbox with provision for machine guns. The bunker has been painted in a credible camouflage. On one end it is possible to note the damage inflicted by the Germans, when they took out the metal observation turret. This kind of treatment – and damage – can be observed on a great many bunkers of the line.

Inside, the bunker has been turned into a local museum on the armed forces. There were border guards operating in the area, involved in skirmishes before and after the end of the war. The weapons originally intended for the fort are not in place, but there is an interesting collection of weapons, uniforms, motorcycles and other gear from the army corps operating around there over the years.

The Brezinka fort is possibly one of the most famous of the entire defensive line. The reason for that is that it was recently restored to look like it should have looked, if only it was completed back in the late Thirties. In the restoration process, weapons and system parts from other locations in todays Czech Republic were brought to the Brezinka site.

The visit of the interiors is really exceptional, even compared to the forts of the other defensive lines in Europe. The fort really looks like it could be put in operation today!

The first part of the visit of this two-levels artillery bunker will take you downstairs, where you can find the sleeping quarters for the troops with a food storage.

Close by, there are two rooms for the electrical generator and for the ventilation system. Here you can see the electrical compressor, with backup manual handles, and the huge air filters. These are multi-stage filters, where each stage was designed to stop different poisonous components in the air. The system is working, so you are given a demonstration of the compressor – interesting to get an impression of the incredible noise this system produced!

On the same floor there is also a telegraph system, which was used to communicate with other bunkers in the complex in case of failure of the telephone link. This system was capable of transmitting Morse signals to the other pillboxes next to it, projecting the signal into the ground and using it as a medium – there were no cables! This allowed it to work even if a direct electrical link was lost.

The upper floor is even more surprising, cause basically all weapons have been restored to their original positions. The Brezinka bunker featured two main firing chambers. The one pointing uphill features two heavy 7.92 mm machine guns Zbrojovka Brno Mark 1937, a very widespread and reliable weapon, with an operational range of 1’000-2’000 ft at 500-300 rounds per minute. These were used to target infantry movements along the border line, pinpointed by anti-tank obstacles. Fire direction was from the observation turret or via an optical aim system. The latter was extremely precise, but more expensive than the machine gun!

In presence of an impenetrable smoke curtain or at night, an open-loop aiming system could be used. This consisted of a board with a precise sketch of the view of the outside from the firing point, mounted on top of the machine gun. A calibrated needle pointer was used to align the machine gun with respect to the target, by simply pointing the needle on the intended target on the board!

The third machine gun is a light ZB vz. 26, a very popular light 7.92 mm machine gun. This was used for close defense of the fort access. There are also grenade throwing tubes for the same purpose.

The other firing chamber points downhill, and is supplied with a machine gun as in the first chamber, plus the assembly of an anti-tank cannon and another machine gun. The cannon is a 4.7 cm Skoda KPUV vz. 38, with an up to 1-mile range at 35 rounds per minute. It could pierce a 50 mm armor from 0.7 miles apart, and was a very effective weapon. This very cannon was already in place before the German invasion, and was taken by the Wehrmacht to the Atlantic Wall in Norway. It has been returned to its original location in recent times.

There are other two metal-reinforced embrasures in the bunker for other two ZB vz. 26s. On the same floor you can find a kitchenette and toilets for the troops, ammo storages, and two observation turrets. The latter feature a working movable floor, to allow tailoring to the height of the observer. The turrets were fitted with a periscope, and were used to direct fire. They weighed 21 tonnes each, and could withstand direct close fire from anti-tank guns!

Finally, the room of the commander and the telephone room – with an original machine from the Thirties – conclude the tour.

The Lom object, five minutes uphill with respect to the Brezinka fort, is another infantry bunker. It has not been refurbished to the level of Brezinka, but nonetheless it is used to showcase construction pieces, weapons and memorabilia from WWII years. The armored turret was taken away by the Germans.

Between the Brezinka and Lom bunkers you can find a section of anti-tank obstacles. The concrete base used to support them can be spotted in several places here and other sites of the defensive line.

Getting there and moving around

These bunkers, and especially Brezinka, are surely among the most interesting of the kind to visit, considering also their counterparts in France, Finland and Belarus.

The Voda site is easily accessible by car. The Brezinka and Lom bunkers cannot be reached by car. You can park on a street close to the trail-head and take the trail. Unfortunately, the road going uphill, albeit not uneven, is extremely steep and about 1 mile long. You should definitely take this into consideration when planning your excursion, even if you are physically well-trained. Very few beverages are available at the Lom site, which is five minutes farther uphill from Brezinka. Nothing is sold at Brezinka.

It is a pity they didn’t prepare a better access road, cause the site is surely worth a visit, and may appeal to the specialist and to the general public – especially children! – as well.

Only cash is accepted in all these sites. The Brezinka site is accessible only with guided tours. Tours were offered every 20 minutes in late August when I visited. You are given a detailed leaflet in English or German, in case you can’t speak Czech. The guided tour of Brezinka takes about 50 minutes.

The Lom site can be toured in 10 minutes, whereas the Voda bunker is worth a 20-30 minutes self-guided visit. Explanations are partly also in English and other languages in the Voda bunker.

Information on these three forts can be found from this website.

Hanicka

The Hanicka site features an extensive underground tunnel system, actually connecting the main entrance to some major peripheral forts. The ensemble includes one of the few most imposing firing units in the entire defensive line.

But what makes this site even more unique is the fact that, after having fallen into oblivion since the end of WWII, in the 1970s it was selected to be developed into a nuclear-proof governmental bunker – codenamed ‘Kahan’. The ensuing modifications altered greatly the appearance of the entrance bunker, and most of the systems you can see today in the underground part are actually dating from the 1980s.

The works on the conversion were carried out at a slow pace, and were actually not completed before the end of communism in Czechoslovakia, the collapse of the Czechoslovakian federation and the birth of the Czech Republic in the early 1990s. The bunker was soon opened to the public as a unique specimen of military building engineering from both WWII and the Cold War.

The tunnels can be be visited only with a guided tour. The original entrance to the tunnel, modified in the 1980s, is the starting point of the visit. The entrance to the bunker looked totally different before it was developed into a nuclear shelter. The modifications at the level of the entrance included the construction of a soft service building, with room for storages of trucks, armored vehicles and other material.

In the first hall giving access to the tunnels you can find weapons, communication systems, scale models of the site, maps and much more from both the ‘two lives’ of the bunker, in the 1930s and 1980s.

Access it through a thick, typical soviet nuclear-blast-proof gate. Inside, you see the nuclear-proof system allowed to seal a section of the entry tunnel close to the gate. The bunker was designed to allow long-term survival and operations for 300 people also in case of total insulation from the world outside.

A modern energy production system was put in place and can be seen together with water and gasoline tanks. The structure of the bunkers was not altered significantly, but the various systems date clearly from more recently than the Thirties.

There are also extensive sleeping quarters and a medical facility to the far end of the main tunnel, which was built in the side of a hill.

You finally come out in a former infantry bunker, reached climbing upstairs to the top of the hill. Here the embrasures and reinforcing panels of the firing chambers are still in place.

The next part of the visit will take you to some other smaller bunkers, visible only from the outside.

The visit ends in front on the major RS-79a bunker, a top of the line artillery bunker. This was provided with three embrasures for field guns. The size of this installation is really striking. You cannot visit inside this bunker.

It was somewhat damaged by weapons testing by the Germans, and never refurbished. You can see a nuclear-proof door substituting one of the original embrasures.

Back to the parking, it is possible to see from the outside an infantry bunker and examples of anti-tank barriers. This bunker is a rare example of a totally undamaged fort of the line – even the metal turrets are original and have been left in place by the Germans.

Getting there and moving around

The Hanicka complex can be explored outside with no restrictions, but the inside can be toured only with a Czech-speaking guide. They provide you a leaflet in English. The visit lasts about 60 minutes. Info on their website.

The entrance is via the original entrance bunker, modified in the 1980s. Reaching this point from the parking on road N.319 is a bit demanding, cause you need to walk on an unpaved road going uphill with a relevant grade for about 0.7 miles, then you have about another 0.7 miles walking on an easy, flat road. Differently from Brezinka (see above), they have a facility selling food, beverages and souvenirs close to the entrance. It’s a pity they just did not prepare a good road and a parking nearby the entrance.

Anyway, this site has much to offer and the visit is highly recommended, both inside and outside, for children and adults as well.

Bouda

The two nearby forts of Bouda and Hurka share a basically similar construction, and represent possibly the best examples of almost-complete forts in the defensive line. They are articulated around a straight tunnel, mined in the side of a mountain. The section of the tunnel next to the main entrance bunker features a narrow gauge railway, used to transport ammos and various supplies to the storage units inside. Deeper in, there is provision for sleeping quarters for the troops. To the far end of the tunnel you can get access to a group of fortified installations and artillery bunkers.

The Bouda installation can be visited thoroughly. The site is very big but more remote to reach than Hurka. Besides the access bunker, where the ticket office can be found, you can see a specimen of a metal turret. None of the original turrets has been left in this site, all have been salvaged by the Germans.

Soon after the beginning of the tour, you will see the terminal of the narrow gauge railway. The double track goes through a short incline. At the base of the incline the main tunnel starts.

Not far from the entrance you meet slots for sealing doors and related actuation systems. These were installed by the Germans and used to test their reliability and the effectiveness of their weapons on them. They had some cannons installed further in along the tunnel, and shooting on the armored doors they had installed.

The railway turns single-track, until you reach a major storage for weapons with a loading platform. One of the storage chambers has been reused to display a collection of weapons used in the forts and the corresponding armored embrasures.

Further on you visit a group of chambers originally intended to be fitted as sleeping quarters. The dividing walls and metal frames have been demolished at some point – or may be they were never installed – but some of them can be seen, original or reconstructed. In this area there is also a memorial to Czechoslovakian troops.

Further in the tunnel you reach another set of chambers, one of them with pieces of armored constructions and other heavy material from around the site. Then you get access to the stairs leading to a heavy artillery bunker.

What you see here is the cylindrical concrete box where the actuation mechanism and reinforced cupola should have been installed. The size of the construction suggest the total intended size of the field cannon assembly, really big! This should have been very similar to some of the installations in the Maginot line (see this post). There is also a firing chamber for lighter weapons where nothing remains except some metal coating.

The guide will lead you back to the bottom and inside the main tunnel, and ascending along another stairwell you can reach an observation bunker with provision for light weapons. This bunker is in a better shape, and significant traces of the original soft construction are clearly visible.

Damage is due also to weapons testing carried out by the Germans, clearly visible from the outside.

Upon reaching the surface, you will be directed along a walk through the exteriors of the bunkers in the fortress, including the incomplete heavy artillery bunker, with the large concrete pit from visible above.

Finally, you access one of the bunkers, which appears pierced and heavily damaged from the outside. On the inside the firing chamber is fairly well conserved, with the original embrasures for machine guns still in place. The wall is pierced presumably by a shell or mine.

This very bunker was used also for testing high-yield explosives, and as a result of a huge explosion it shifted sideward of a few feet, without collapsing and with no alterations to its general shape – really sturdy! You can clearly appreciate the shift by going down in the stairwell!

You will then return to the main entrance with the ticket office where the visit will finish.

Getting there and moving around

The bunker parking can be found very easily driving north of the road N. 11 between Cervena Voda and Cerkovice. The area is popular for nature trail hiking, and the fort is also a popular attraction. Following the road signs, you will be driven to an observation tower on top of a mountain.

From there, the entrance to the bunker can be reached only by taking a trail which descends along the northwestern side of the mountain. The distance to cover by foot is a good 1.5 miles, so this should be taken into consideration when planning your trip. You have to go uphill on your way back to the parking, so the trail is more demanding when you are leaving. There are signs on every crossing, so you should not get lost. By the way, the walk is really nice, going in the trees with some bird-eye views on this beautiful countryside!

Once at the entrance of the bunker you can find refreshments and souvenirs. The bunker can be visited only with a guide. They are offering three options for the visit, each of them adding something to the other, yielding a difference in time. I took the most complete tour, and it took about 180 minutes.

You are provided jackets for staying inside – even though the temperature is not extremely low, especially if you are wearing technical trekking clothes, which are recommended for the preliminary trail to the entrance. The jackets are dirty, so it’s better to bring one of your own, as they almost force you to have something to cover in!

The tour is offered in Czech, with explanations in English provided on all panels and on a leaflet you can borrow inside. There is a fee for taking pictures, but both this and the entry ticket are rather cheap. Further info on their official website.

Hurka

The Hurka fortress is an installation pretty similar to the Bouda site, at least considering the inside part. After some years of closure following WWII, the Hurka site was converted into an ammunition depot in the 1960s. The modifications inside include some demolition work on the soft walls and frames, so the structure is mainly composed of large vaults.

The tunnels can be visited only with a guide. The visit starts from the original gate of the underground facility, where all supplies could be placed on a narrow-gauge convoy. An external loading platform can be spotted, together with specimens of anti-tank devices and of the reinforced observation turrets.

Inside, an incline leads to the initial part of a long straight tunnel. The exhibitions provide an impressions of an ammo storage, and there are also weapons and armored embrasures from the fort.

An interesting exhibition prepared in one of the halls is about the activities of the agents of the Czechoslovakian government in exile during WWII. This included launching paratroopers over the territory of the former Republic, tasked with establishing contact with dissident anti-Nazi movements, and carrying out high-risk, top-priority missions. A pretty famous mission they were tasked with was the assassination of Reinhard Heydrich, a top-ranking SS, since 1941 responsible for the administration of the annexed territory of todays Czech Republic. A bloodthirsty, feared and hated figure, he died in hospital soon after having being shot in June 1942 in an operation codenamed ‘Anthropoid’. All the spies involved in the operation were later killed, and terrible retaliation actions were taken by the Nazis on the local population. An international movie was produced on this subject in 2016.

You don’t get access to the firing positions from inside, but you can visit them from the outside on your own and with no restrictions.

A pretty rare feature is a ‘top of the line’ artillery bunker, with three shooting embrasures on one side. This bunker is today standing severely damaged from German fire, inflicted during weapon testing. The bunker was actually de-interred by the Nazis to expose its walls, and perforation cannons were tested on it. Among them, the so-called Röchling shells, with a high perforation potential, adopted operationally but used very rarely in action by the Germans.

The other artillery positions are scattered on a grassy area on the side of a hill dominating a local valley. You can see the damages inflicted by fire testing, and the empty boxes of the metal turrets salvaged by the Germans.

Getting there and moving around

The tour of the underground starts from the original access bunker, which can be reached just north of Kraliky on road N.312. Convenient parking outside. The underground can be accessed only with a guide. The ticked office offers also food and beverages. More info on their official website.

The firing positions can be toured on your own. They can be accessed driving about 0.3 miles north along the same N.312 road to the top of the hill, and turning left on an unpaved road. You will soon see a bar with a prohibition sign for cars. You can park nearby on the grass and proceed by foot, you will meet the fortification with an almost flat walk of 0.15 miles. There are signs with multi-language explanations close to each of the bunkers. The place is really nice, and the walk is highly recommended.