On April 17, 2012, the Space Shuttle Discovery was flown from Florida to Washington Dulles International Airport so that the Shuttle can be permanently displayed at the National Air and Space Museum’s Udvar-Hazy Center. Discovery made the trip atop a specially modified NASA 747 Shuttle Carrier Aircraft. Before landing at Dulles, the Shuttle was flown over the National Mall area in downtown Washington, DC.
In this photo, the aircraft combo is preparing to make a west to east pass on the south side of the Mall from behind the Lincoln Memorial. Construction workers that are renovating the Reflecting Pool paused for a moment watch the Shuttle fly by.