In Spandau, Fort Hahneberg—a gigantic brick structure dating from 1888—lies dormant, blending seamlessly into the surrounding landscape. Prussia once built the complex for defense, but curiously, the military technology was already completely obsolete by the time it opened.
Today, this historic “lost place” opens its massive gates from April through October and offers exciting tours on set dates for history buffs and nature lovers. If you don’t want to wait, you can try to break out of this prison every day.
Fort Hahneberg in Spandau: This “lost place” made film history

The structure is an architectural heavyweight. 28 million hard-fired bricks were laid in the Markish sand at the time, completely buried in the ground and covered with meter-thick bomb-proof ceilings.
During its construction from 1882 to 1888, artillery technology advanced rapidly. The newly invented high-explosive shell could penetrate the fort’s thick brick walls. No sooner had the last brick been laid than the fort became useless as a defensive structure. From then on, it served as barracks and a warehouse— a military flop costing millions.
After a checkered history as a barracks, military archive, and restricted area along the Berlin Wall , volunteer association members now oversee its preservation. Visitors wander through dark vaults and marvel at the sheer size of the defensive complex.
Hollywood set and winter quarters
Hollywood has long recognized the potential of these winding corridors. Quentin Tarantino , for example, used the rugged atmosphere as a backdrop for his blockbuster “Inglourious Basterds.” We first encounter the Basterds in action here, deep behind enemy lines.
But it’s not just film crews who appreciate the undisturbed tranquility. During the cold months, hundreds of bats take over here and use the frost-free casemates for hibernation. That’s why the fortress remains strictly closed to us humans in winter. In late summer, however, you’ll have the chance to take part in special evening tours and observe the nocturnal inhabitants.
Here’s how to plan your trip to the outskirts of the city

The grounds may only be accessed as part of a guided tour. Be sure to wear sturdy shoes, as the ground is uneven. Since it’s quite cool and dark inside the thick walls even in summer, be sure to pack a sweater in your backpack.
If you’re arriving by car, you can park on Hahnebergweg and walk the last few meters up the hill. If you’re taking public transportation, catch the bus (e.g., M37) from Spandau City Hall to the Hahneberg stop, and you’ll reach your destination after a short walk.
📍 Fort Hahneberg, Hahnebergweg 50, 13591 Berlin
📆 April through October; guided tours usually on Saturdays, Sundays, and holidays at 2:00 p.m. and 4:00 p.m.
⏳ Approx. 90 minutes per tour
💵 Adults approx. €7.50–€9.50, children €2.50–€5.00
ℹ️ More info and dates