Notre Dame Du Haut is a Roman Catholic Chapel built by Le Corbusier in Ronchamp, France in 1955. This is one of the Franco-Swiss’ most important designs and one of the best-known examples of the architect’s style. Considered to be one of the most important architectural building designs, the Roman Catholic chapel’s thick masonry walls allow for a free-flowing structural design that help provide the buildings stability and support. While the exterior is rather complex, the interior appears surprisingly simple in nature. Architecture is all about span and light, and this building has excellent examples of core fundamental architectural elements.