The Blockhaus d'Éperlecques is a massive concrete bunker located in northern France, near Saint-Omer. Built by Nazi Germany during World War II as part of the Atlantic Wall fortifications, it was intended to serve as a launch site for V-2 rockets targeting England. Construction began in 1943 but was never completed due to Allied bombing raids.
The structure stands as a stark reminder of the German occupation and the technological ambitions of the Third Reich during the war. Today, it is preserved as a historical monument and museum, offering visitors insight into this period of military history.