The hill was constructed atop a partially completed Nazi military-technical college that was too deeply buried in rubble to be demolished.
The listening station at Teufelsberg was part of the ECHELON global intelligence network.
The site includes a deep tunnel system constructed during the Cold War era.
The name 'Teufelsberg' translates to 'Devil's Mountain' and shares its name with a nearby lake, Teufelssee.
The ground beneath the hill contains roughly 400,000 apartments' worth of debris from bombed-out Berlin buildings.
The site has been used as a film location for various international science fiction and thriller productions.
The radomes are constructed of plastic, which allowed radar signals to pass through while protecting the equipment from the elements.
In 2026, the site is operated by private owners who manage the art installations and public access.
Teufelsberg is a man-made hill in Berlin built from approximately 26 million cubic meters of WWII rubble, standing 120 meters above sea level. During the Cold War, the United States National Security Agency (NSA) operated a sophisticated signals intelligence listening station on the summit. The site features five distinctive geodesic domes that served as radomes for the espionage equipment. After the fall of the Berlin Wall, the site was decommissioned and subsequently became a massive open-air gallery for international street art. The structures now feature extensive graffiti and murals covering nearly every surface of the former listening towers. The location is situated within the Grunewald forest, providing elevated views over the surrounding woodland and the Berlin skyline. The site remains partially ruined, maintaining an industrial and abandoned aesthetic that reflects its history as a restricted military zone.
The interior of the main dome, where sunlight filters through the damaged roof onto the graffiti-covered walls.
Wear sturdy, closed-toe shoes as the floors are often uneven, dusty, and contain glass shards.
Bring a flashlight if you plan to explore the interior of the lower buildings, as there is limited artificial lighting.
Check the weather before visiting, as the summit is exposed to significant wind and rain without indoor climate control.
Avoid visiting in high-wind conditions, as the structures are old and the summit provides no shelter.
Open daily, though access may be limited during inclement winter weather or private events.
Do not climb on the domes or restricted art installations; obey all 'no entry' signage for safety reasons.
