The Space Shuttle Enterprise has been moved out of Washtington D.C. now that the city has the real thing:  the Smithsonian’s Steven F. Udvar-Hazy Center received the Space Shuttle Discovery ealier in April,  The  Enterprise, which was only ever used for gliding tests rather than flying into orbit, was flown from the Udvar-Hazy Center into New York while mounted atop a NASA 747 Shuttle Carrier Aircraft (SCA) on 27 April, 2012.  It is to be shown at the Intrepid Sea, Air & Space Museum.