The National Air Force Museum in Dayton, OH is simply loaded with planes and history.
And it is FREE!
This is the MIG that the US paid $100,000 to a North Korean airman when he flew it to South Korea. The US had "bombed" the North with leaflets trying to get a pilot to defect.
This gives an idea of how many planes are on display. This just part of one display wing. I think there were six wings.