Blockhaus d'Éperlecques

Éperlecques, FR

A massive concrete bunker constructed by **Organisation Todt** using forced labor in 1943–44, intended as the principal production and launch facility for **V-2 rockets** targeting London. Allied bombing raids disrupted construction before the bunker was operational, and the Germans abandoned it in favor of mobile launching. The largest surviving intact bunker in northern France, now a museum.