Friday I went to the Air Force Museum, now officially called the National Museum of the United States Air Force. I got around the new fourth building and a little bit of some of the other three, I'm planning a return trip later this month. The fourth buiding is mostly Presidential aircraft, experimental aircraft, and space.
Here's the fourth building:
North American X-15A-2
Boeing VC-137C SAM 26000 (Kennedy's Presidential Aircraft)
Hexagon KH-9 Film Recovery Vehicle
Ryan X-13 Vertijet
Douglas VC-54C “Sacred Cow" (Roosevelt's Presidential Aircraft)