As part of Hitler’s vision for a completely renewed Berlin, the construction of Teufelsberg comprised of university faculty for military technology but it was never completed. After the war, trucks brought rubble from the rest of the devastated city to the site near Heerstraße and it soon piled up to become the highest point in West Berlin. From that moment on the field station was used by the American forces until the end of the Cold War in 1989. From the Germany reunification the complex is abandoned and in decay in the outskirts of Berlin. Teufelsberg has a mysterious aura today: not until 2020 when the archives are opened will the public be able to find out what was listened to, and what methods were used.