Battery Oldenburg, German coastal artillery fortification in Calais, France
Battery Oldenburg contains two concrete casemates measuring 35 meters long and 15 meters high, housing modified Russian 240mm artillery guns from World War I.
The German military constructed Battery Oldenburg between 1941 and 1942 as part of the Atlantic Wall defenses along the French coast during World War II.
The fire control and hospital bunker at Battery Oldenburg features military frescoes and paintings that document the daily operations of German forces.
Visitors can explore both casemates by walking around the eastern side of the former barrack compound, though some areas present structural instability.
The artillery installation earned the local name 'Le Moulin Rouge' for reasons that remain unknown, adding mystery to this military structure.
Location: Calais
Part of: Atlantic Wall
GPS coordinates: 50.97600,1.90494
Latest update: June 23, 2025 09:45
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