On the rooftop of the Gare Montparnasse, the small Musée Jean Moulin is devoted to the WWII German occupation of Paris, with its focus on the Resistance and its leader, Jean Moulin (1899–1943). The attached Mémorial du Maréchal Leclerc de Hauteclocque et de la Libération de Paris shows a panoramic film on the eponymous general (1902–47), who led the Free French units during the war and helped to liberate the city in 1944.