The Pima Air & Space Museum is one of the largest aviation museums in the world, with over 425 aircraft spread across 80 acres next to Davis-Monthan Air Force Base. SR-71 Blackbirds, B-29 Superfortress, the surviving NB-36H nuclear-powered bomber test airframe, presidential transports — Kennedy's, Nixon's, and Johnson's Air Force Ones are all here.
The indoor hangars cover early aviation, WWII, and space exploration; the outdoor yard is where the bigger and weirder aircraft live. Plan three to four hours. Bus tours run through the adjacent boneyard several times daily — book separately and bring photo ID, as you cross onto a military base.