Blockhaus d'Éperlecques
The Blockhaus d'Éperlecques (English: Bunker of Éperlecques, also referred to as "the Watten bunker" or simply "Watten") is a Second World War bunker, now part of a museum, near Saint-Omer in the northern Pas-de-Calais département of France, and only some 14.4 kilometers (8.9 miles) north-northwest from the more developed La Coupole V-2 launch facility, in the same general area. The bunker, built by Nazi Germany under the codename Kraftwerk Nord West (Powerplant Northwest) between March 1943 and July 1944, was originally intended to be a launching facility for the V-2 (A-4) ballistic missile.