The non-profit association Berliner Unterwelten has set itself the goal of promoting research, documentation and conservation of underground structures in Berlin. You will discover something new about the history of the city and its secrets; descend into abandoned subway stations, bunkers, tunnels and underground conduits.
Berliner Unterwelten was founded in 1997 to explore, document and preserve the city’s subterranean architecture. The organization’s base is in a former air raid bunker in the Gesundbrunnen subway station, now a museum—the Unterwelten Museum (Subterranean Museum)—that offers various tours through Berlin’s underground. The bunker was cleared and reconstructed by the group and transformed into a museum while maintaining its original character. Hiding on four floors below Berlin are dozens of bunkers, tunnels, walkways, canals, the route of a pneumatic postal system, storage rooms, bomb and ammunition storage, and abandoned subway stations.