World War I memorial, serving the same purpose as the Douaumont ossuary near Verdun, built near the locations of the Marne battle in the 1920s. Lantern of the dead. Ground floor. Upper floor. Upper floor. Upper floor. Upper floor. Upper floor. Upper floor. Ossuary. Dormans castle, 17-18th century. Dormans castle, 17-18th century. Avenue de Champagne Labels