Bunker 667SK is a military bunker located near Brest, France. Situated in the Brittany region, this structure is part of France's extensive coastal defense network. The area around Brest has a long history of military fortifications, dating back to the 17th century when the city became a major naval base for the French Navy.
During World War II, the region saw significant military activity, with German forces occupying the area and constructing numerous defensive structures as part of the Atlantic Wall.