Teufelsberg Listening Station, Germany
In the forests outside of Berlin, Germany, a former NSA spy station remains abandoned. Teufelsberg Listening Station sits on top of a 260-foot hill called “Devil’s Mountain”.
The site was originally a Nazi military-technical college, but during the Cold War, the US repurposed it to spy on the Soviets. After the fall of the Berlin Wall, Teufelsberg Listening Station was abandoned.