National Air and Space Museum Steven F. Udvar-Hazy Center - June 21st 2008

Their website is here.

Located near Dulles Airport.  They have some awesome stuff!

Pictures from their website.  Picture captions are links to their website.

Somewhat chronological

eg
Enola Gay, 1945

SR-71
The SR-71, 1967

Which is sitting in front of

enterprise
The Enterprise, 1976

And there in the room with the Enterprise is a whole bunch of stuff, including

Corona
The Last Corona Capsule, 1972