Washington, DC
National Air and Space Museum is one of Washington, DC.

1. National Air and Space Museum

9.2
6th St. (Independence Ave SW), Washington, D.C.
Science Museum · Southwest Washington · 638 tips and reviews
National Museum of American History is one of Washington, DC.

2. National Museum of American History

9.1
1400 Constitution Ave NW (at 14th St NW), Washington, D.C.
History Museum · Northwest Washington · 358 tips and reviews
Smithsonian Institution National Postal Museum is one of Washington, DC.

3. Smithsonian Institution National Postal Museum

8.5
2 Massachusetts Ave NE (North Capitol St NE), Washington, D.C.
History Museum · NoMa · 62 tips and reviews
Smithsonian Institution Building (The Castle) is one of Washington, DC.

4. Smithsonian Institution Building (The Castle)

8.6
1000 Jefferson Dr SW (btwn 9th & 12th St SW), Washington, D.C.
History Museum · Southwest Washington · 86 tips and reviews
National Archives Lawrence F. O'Brien Gallery is one of Washington, DC.

5. National Archives Lawrence F. O'Brien Gallery

7.2
Washington, D.C.
History Museum · Federal Triangle · 2 tips and reviews
Skylab is one of Washington, DC.

6. Skylab

7.1
601 Lenfant Plz SW, Washington, D.C.
Science Museum · Southwest Washington · 5 tips and reviews
National Museum of the American Indian is one of Washington, DC.

7. National Museum of the American Indian

8.1
950 Independence Ave SW (4th St. SW), Washington, D.C.
History Museum · Southwest Washington · 179 tips and reviews
Hope Diamond Exhibit is one of Washington, DC.

8. Hope Diamond Exhibit

6.9
Lenfant Plz SW (at National Museum of Natural History), Washington, D.C.
Science Museum · Northwest Washington · 11 tips and reviews