Teufelsberg Berlin: The Cold War Spy Station on a Man-Made Hill

If you spend a clear day looking west across Berlin, you might notice something odd on the horizon: a wooded hill with a cluster of white golf-ball shapes on top. People ask me about it all the time. Is it a stadium roof? A weather station? Something military? The short answer is that it is Teufelsberg, and almost nothing about it is what it looks like.

Teufelsberg, out in the Grunewald forest on the western edge of Berlin, is one of the strangest places in the whole city. It is a hill that people built by hand, over a buried Nazi building, topped by an abandoned Cold War spy station, now covered in street art. It is basically several eras of Berlin stacked on top of each other. This is my honest guide to what it is, whether it is worth the trip out west, and how to actually get there in 2026.

What is Teufelsberg?

Start with the part that surprises most people: Teufelsberg is not a natural hill. This whole western edge of Berlin is flat, so the 120 m mound in the trees was made entirely by people.

After the Second World War, Berlin was full of rubble from bombed and burned-out buildings, and it all had to go somewhere. From 1950 the city dumped that debris here, on the same spot, for over twenty years. By the time the trucks stopped in 1972, roughly 26 million cubic metres of a destroyed city had been piled up, and a forest was planted over the top. When you stand on Teufelsberg, you are standing on old Berlin.

There is a stranger layer underneath. Buried at the base is the concrete shell of an unfinished Nazi military-technical college, designed by Albert Speer as part of Hitler's planned world capital "Germania". It was never completed, and after the war it was built so solidly that the Allies could not easily blow it up. Burying it under rubble turned out to be simpler than demolishing it, which is a big part of why the hill exists at all. If you want the wider story of how the city was torn apart and rebuilt, my guide to how Berlin was divided fills in the background.

The widget below is a cross-section of the hill. Tap each layer to see what is really under your feet, from the buried college at the bottom to the spy station on top.

Teufelsberg Berlin: the Cold War spy station on top

Here is why the domes are there. During the Cold War, Teufelsberg was the highest point around and had a clear line of sight over East Germany. So the Americans built one of their biggest listening posts on the summit, known as Field Station Berlin, and filled those white domes, called radomes, with antennas.

From up here they intercepted radio and satellite signals from across the Eastern Bloc, as part of the global surveillance network that later became known as ECHELON. It ran until the Cold War ended around 1990, and then it was over almost overnight. The equipment was pulled out, the site was sold, and grand plans for a hotel and a spy museum collapsed. For years it just sat there, fenced off and slowly falling apart.

The domes are empty now, their fabric torn: this was once one of the West's biggest Cold War listening posts.

If you like this layer of Berlin's history, Teufelsberg pairs well with the more central Cold War sites. My guide to Cold War Berlin in 5 key locations covers the ones you can reach without leaving the middle of the city.

What you actually see at Teufelsberg today

The abandonment is exactly what saved it. Because nobody could agree what to do with the place, artists moved in, and the old station has become one of Europe's largest open-air street-art sites, with hundreds of works that change all the time. The domes, the stairwells and the long station walls are all covered.

Today the old station is one big canvas. This mural even names the hill.

You climb up through the buildings to a 360-degree viewing platform that looks out over Berlin to the east and the Grunewald forest and lakes to the west. There is also a small history exhibition on the site. It is less a polished museum and more a semi-ruin you are allowed to wander, which is a large part of the appeal.

Inside one of the geodesic domes, every white panel is covered in tags, and the acoustics are strange enough that people go quiet just to hear it.

Is Teufelsberg worth visiting?

Honestly, it depends on what you came to Berlin for. If you like Cold War history, urban exploration or street art, it is genuinely special and unlike anything in the city centre. The story is real, the domes are striking, and the view is wide.

But I will be straight with you: it is out in the far west, it takes a half day, and it is a semi-ruin rather than a manicured attraction. If you only have a day or two and you have not yet seen the Brandenburg Gate, Museum Island or the Wall, Teufelsberg is not where I would spend that time. I usually suggest it for a second or third visit, or for travellers who already know they love this side of Berlin. If it is views you are mainly after, you can get those far more easily from Berlin's viewpoints closer to the centre.

How to get to Teufelsberg, and 2026 tickets

This is the part people underestimate. Teufelsberg is not a quick stop; plan a half day and wear proper shoes.

• Getting there: Take the S-Bahn to Grunewald (or Heerstraße), then walk about 2 km, roughly 30 minutes, uphill through the forest to the entrance. If you drive, there is free parking at the bottom of the access road, but you still walk the last stretch up. There is no station or car park at the top. Checking your route on the BVG journey planner before you set off saves confusion, and if you are still working out the network, my guide to Berlin public transport will help.

• Opening hours: Open daily from 11:00 until sunset, so it closes later in summer (around 21:00) and earlier in winter (around 16:30). Last entry is one hour before closing, and it is closed on 24 and 31 December.

• Tickets (2026): €12 for adults, €10 reduced, €5 for children and youths up to 17, and free for under-7s, with a family ticket at €27. You can buy online in advance or pay at the entrance by cash or card. For current times, guided-tour options and any closures, check the official Teufelsberg site before you go.

Getting here means a real walk: about 2 km uphill through the Grunewald forest from the S-Bahn station.

Because Teufelsberg sits out west, I treat it as its own Cold War day rather than something to squeeze onto a busy first afternoon. My own free walking tour is on the other side of the story: it meets at Alexanderplatz, runs about 2 hours through the historic centre of the former East, and explains the divided-city history that a place like Teufelsberg grew out of. Do the centre with me first, then head out to the domes when you want to go deeper. If you are curious why I start where I do, I explain it in why my tour starts at Alexanderplatz.

Image credits

• Cover and street-art views: Sarahmirk, CC BY-SA 4.0, via Wikimedia Commons.

• Radome close-up: RealPixelStreet, CC BY-SA 4.0, via Wikimedia Commons.