Washington, DC, District of Columbia, D. C National Air and Space Museum of the Smithsonian Institute, interior, Milestones of Flight, wall mural

National Museum of Natural History, Washington, DC, District of Columbia, A large African Elephant is displayed inside the National Museum of Natural History of the Smithsonian Institution in Washington D. C.

National Museum of Natural History, Washington, DC, District of Columbia, A large African Elephant is displayed inside the National Museum of Natural History of the Smithsonian Institution in Washington D. C.

National Museum of African Art, Washington, DC, District of Columbia, National Museum of African Art of the Smithsonian Institution in Washington D. C.

National Air and Space Museum, Washington, DC, District of Columbia, Milestone of Flight exhibits at the National Air & Space Museum of the Smithsonian Institution.

National Air and Space Museum, balloon, Washington, DC, District of Columbia, Breitling Orbiter 3 Gondola at the National Air & Space Museum of the Smithsonian Institution.

National Air and Space Museum, Washington, DC, District of Columbia, Exhibits at the National Air & Space Museum of the Smithsonian Institution's gallery, Milestones of Flight.

Washington, DC, balloon, National Air and Space Museum, District of Columbia, Breitling Orbiter 3 Gondola at the National Air & Space Museum of the Smithsonian Institution.

National Gallery of Art, Washington, DC, District of Columbia, National Gallery of Art of the Smithsonian Institution in Washington D. C.

National Air and Space Museum, astronauts, Washington, DC, District of Columbia, Apollo to the Moon, Skylab at the National Air & Space Museum of the Smithsonian Institution.

National Gallery of Art, Washington, DC, District of Columbia, National Gallery of Art of the Smithsonian Institution in Washington D. C.

National Air and Space Museum, Washington, DC, District of Columbia, Exhibits in the Milestones of Flight gallery at the National Air & Space Museum of the Smithsonian Institution.

Washington, DC, District of Columbia, D. C National Museum of Natural History of the Smithsonian Institute at the National Mall