Siegfried Line Museum, Pirmasens
The Siegfried Line Museum at Pirmasens (German: Westwallmuseum Pirmasens) is a museum in the German state of Rhineland-Palatinate that is housed in a former subterranean fortification on the edge of the village of Niedersimten in southwest Palatinate (region). Its theme is war, but it also views itself as a memorial to peace.
Source: Wikipedia — Siegfried Line Museum, Pirmasens (CC BY-SA 4.0)