Category
page 1Ruins in Hauts-de-France
Château de Coucy
13th-century castle in France
La Coupole
WWII Nazi-built bunker complex in France
Royal Abbey of Our Lady of Chaalis
former abbey and museum in Fontaine-Chaalis, France

Blockhaus d'Éperlecques
Second World War bunker complex in the Pas-de-Calais department of northern France, built by Nazi Germany between March 1943 and July 1944 to serve as a launch base for V-2 rockets directed against London and southern England
Fortress of Mimoyecques
Second World War underground military complex built by Nazi Germany between 1943 and 1944 to house a battery of V-3 cannons aimed at London, 165 kilometres (103 mi) away.
Abbey of Saint Bertin
abbey located in Pas-de-Calais, in France
Vauclair Abbey
abbey located in Aisne, in France
Château de Ham
castle