The "Winkel" Bunker – Arcanum Urbex
(arcanumurbex.de)
At the beginning of the 1930s, a German architect was concerned with the possibility of constructing an above-ground air defense tower in such a way that its shape alone would guarantee bomb safety.
At the beginning of the 1930s, a German architect was concerned with the possibility of constructing an above-ground air defense tower in such a way that its shape alone would guarantee bomb safety.