Caen is a port city and capital of Calvados department in northern France's Normandy region. Its center features the Château de Caen, a circa-1060 castle built by William the Conqueror. It stands on a hill flanked by the Romanesque abbeys of Saint-Étienne and Sainte-Trinité, which both date from the same period. The multimedia Mémorial museum is devoted to World War II, the 1944 Battle of Normandy and the Cold War.