The chapel of Notre Dame du Haut in Ronchamp (French: Chapelle Notre-Dame-du-Haut de Ronchamp), completed in 1954, is one of the finest examples of the architecture of Franco-Swiss architect Le Corbusier and one of the most important examples of twentieth-century religious architecture. The chapel is a working religious building and is under the guardianship of the private foundation Association de l’Oeuvre de Notre-Dame du Haut.