Commissioned by the President of France François Mitterrand in 1984, it was designed by the architect I. M. Pei, who is responsible for the design of the Miho Museum in Japan, and Place Ville-Marie in Montreal among others. The structure, which was constructed entirely with glass segments, reaches a height of 20.6 metres (about 70 feet); its square base has sides of 35 metres (115 ft). It consists of 603 rhombus-shaped and 70 triangular glass segments. Name this structure.