Washington, DC, District of Columbia, D. C National Museum of the American Indian of the Smithsonian Institute, evening

Washington, DC, District of Columbia, D. C National Air and Space Museum of the Smithsonian Institute, interior, Skylab

Space Museum, Washington, DC, District of Columbia, Apollo to the Moon, Skylab, exhibit at the National Air and Space Museum of the Smithsonian Institution in Washington D. C.

Air and Space Museum, airplane, 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 Air and Space Museum of the Smithsonian Institute, interior, Skylab

Space Shuttle, National Air & Space Museum, Washington, DC, District of Columbia, Space Shuttle exhibit at the National Air and Space Museum 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 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.

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

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

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

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

Smithsonian Institution, Washington, DC, District of Columbia, Arts & Industries Building of the Smithsonian Institution in Washington D. C.