National Air and Space Museum (world's largest collection of historic aircraft and spacecraft)

The Smithsonian National Air and Space Museum holds the world's largest collection of historic aircraft and spacecraft, including the 1903 Wright Flyer and the Apollo 11 command module Columbia. Its holdings span early aviation, military and civil aircraft, and spaceflight artifacts, with many items exhibited on the National Mall and others at the Udvar-Hazy Center. The museum conducts conservation, research, and public education programs tied to its extensive collections.