A military bunker located near Wimereux, France, designated as OB (zerst.), which likely refers to an 'Objekt' (object) that was destroyed. This structure is situated in the Pas-de-Calais department, an area heavily fortified during World War II as part of the Atlantic Wall defensive system. The region around Wimereux saw significant military activity during the war, with numerous fortifications built by German forces to defend against potential Allied invasion.
Today, remnants of these defensive structures can still be found throughout the coastal areas of northern France, serving as historical reminders of the extensive military engineering projects undertaken during the conflict.