blockhaus

The Blockhaus d'Éperlecques 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 north-northwest from the more developed La Coupole V-2 launch facility, in the same general area.
  • Owner: Privately owned
  • Built: March–September 1943 (major work completed)
  • Height: 28 m (92 ft)
  • Open to the public: yes (protected by law)
  • Condition: heavily damaged
  • Built by: Organisation Todt
  • In use: never completed, captured September 1944
Data from: en.wikipedia.org