I recommend Blackbird Airpark:
http://www.edwards.af.mil/museum/doc...d_airpark.html

It has the first Blackbird (the A-12 prototype), an SR-71 (slightly
bent), and a D-21. Plus a J-58 engine and wind tunnel models.
The A-12 was the first aircraft to reach Mach 3 and return in one
piece.

There's another little museum next to it with a variety of aircraft.