The main feature, called the Fountain of Warsaw, is a long basin, or water mirror, with 12 meters high; twenty oven smaller fountains oven meters high; and ten arches of water. At one end, facing the Seine, are twenty powerful water cannons, capable to project a jet of water fifty meters. Above the long basin are two smaller basins, linked with the lower basin by waterfalls flanked by 32 sprays of high water meters. These fountains are the only exhibition fountains which still exist today, and still function as they have not. In 2011, the fountain's waterworks were completely renovated and a modern pumping system was installed.