Louvre Pyramid of . Its square base has sides of and a base surface area of . It consists of 603 rhombus-shaped and 70 triangular glass segments. The pyramid structure was engineered by Nicolet Chartrand Knoll Ltd. of Montreal (Pyramid Structure / Design Consultant) and Rice Francis Ritchie of Paris (Pyramid Structure / Construction Phase). The pyramid and the underground lobby beneath it were created because of a series of problems with the Louvre's original main entrance, which could no longer handle the enormous number of visitors on an everyday basis. Visitors entering through the pyramid descend into the spacious lobby then
Louvre two days of packing, truck convoys began to leave Paris. By 28 December, the museum was cleared of most works, except those that were too heavy and "unimportant paintings [that] were left in the basement". In early 1945, after the liberation of France, art began returning to the Louvre. By 1874, the Louvre Palace had achieved its present form of an almost rectangular structure with the Sully Wing to the east containing the Cour Carrée (Square Court) and the oldest parts of the Louvre; and two wings which wrap the Cour Napoléon, the Richelieu Wing to the north and the