Teufelsberg
Teufelsberg, literally "Devil's Mountain", it's a hill made from rubble from the Word War II pushed together in the north of the Grunewald forest in West Berlin. Buried deep beneath is what's left of a Nazzi-millitary training school. The old adandoned intelligence-gathering station used during the Cold War by the Americans and British to learn what was going on in Russian-controlled East Germany.
