Grande Arche de la Defense "Le Grande Arche de La Défense" is a huge building and monument. It is the flagship of Napoleon's famous triumphal arch, which is known for the route(Louvre - Arc de Triomphe - Grande Arche). It was opened in 1989, and was the bicentenary of the French Revolution, with a large military parade. The building is a hypercube of 35 stories. It measures 110 meters high, 108 meters wide and 112 meters deep. It is a stunning architectural construction and for any lover of architecture the Grande Arche is a very interesting study project. The outer facades of the building are covered with opaque glass panels designed to withstand inclement weather.