The Bundeswehr's underground facility in Neckarzimmern is a huge, complex warehouse with approximately 170,000 square meters of space and over 40 kilometers of roads and railways – originally a gypsum …
The "Brasse" tunnel entrance is part of the historic "Goldfisch" underground relocation in Obrigheim, which served as an underground aircraft engine factory during World War II. The "Brasse" tunnel was …
Sandstone cliff describes the entrance to the cave quite well. I saw the railing on the slope and also the probable entrance - but then I stopped at the washed-out …