Mittelwerk
Mittelwerk was a German World War II factory built underground in the Kohnstein to avoid Allied bombing. It used slave labor from the Mittelbau-Dora concentration camp to produce V-2 ballistic missiles, V-1 flying bombs, and other weapons. Wikipedia
Founded: 1943
Built: Completed 1943
In use: 1943–1945
Open to the public: Museum in the southern part of Tunnel A