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
Paris in the 17th century finally banned. Some water also came from outside the city, from springs and reservoirs in Belleville, the Pré Saint-Gervais and La Vilette, carried in aqueducts built by the monks to the monasteries on the right bank. These also provided water to the palaces of the Louvre and the Tuileries, which together consumed about half the water supply of Paris. In 1607, Henry IV decided to build a large pump on the Seine next to the Louvre to increase the water supply for the palaces. The pump was located on the second arch of the Pont Neuf, in a high building