Not quite the final frontier...but, the National Air and Space Museum, aka, the Steven F. Udvar-Hazy Center, is all the way out near Dulles Airport. There is also another Smithsonian Air and Space museum but it is in downtown DC.
Unlike most other Smithsonian Museums, the National Air and Space Museum has a fee. It's a parking fee, not an admission fee. They say it's because the airport requires it. So, don't neglect to bring $12 with you if you plan on stopping your car.
The Museum has plenty of aviation history. Some of it is not so pretty...
And some of it is downright adorable!
This thing looks like it flew right out of a Pixar film, don't you think?
There are planes for the wealthy........... and planes for the stealthy.
They even have helicopters.
And, of course...... there are plenty of amazing space gizmo's too!
Satellites, missiles, shuttles, rovers....