The Steven F. Udvar-Hazy Center, an extension of the Smithsonian's National Air and Space Museum, opened December 15, 2003. It is located near Dulles Airport off of Route 28, just north of the intersection of Routes 28 and 50. The huge facility houses important icons of aviation and space history. Special features include a soaring observation tower from which visitors can watch air traffic at Dulles, flight simulators, and an Imax theater. Other amenities include a museum store and food service. Education and family activities are also offered. Parking is available for a $15 fee. Admission is free.