Beijing National Aquatics Center Situated on the west side of Landscape Avenue in the Olympic Green and toward the west of National Stadium (Bird's Nest), it contains the authority 2008 Olympics swimming office. The development began on December 24th, 2003 and was done on January first, 2008. It quantifies 177 meters (194 yards) in length, 177meters wide, and 30 meters (98 feet) high and spreads a range of 62,950 sq meters (75,287 sq yard). It has four stories: one at road level, two above, and one underneath. Its floor space achieves 79,532 sq meters (95,119 sq yard), while the underneath road level zone is no under 15,000 sq meters (17,939 sq yard). The one beneath served as the administration territory amid the Olympics. The main floor is for sightseers. The hall is on the second floor with 6,000 altered seats (2,000 of which are portable), and 11,000 provisional seats. The third floor is entirely for business.