The tunnel was driven through the rock at the beginning of the 18th century and passed by carriage at court festivals. The tunnel has nothing to do with the Hohburg …
Originally the cave was probably part of a protohistorical place of worship. The tunnel was expanded in the Second World War to about 100 m and used as ammunition storage. …
There is nothing to suggest that a relatively large complex of tunnels is hidden inside the mountain. This facility was set up before 1945 as a bomb-proof evasive command post …