One of the interesting places to visit around Tucson is the Pima Air & Space Museum in Littletown. The museum is right across the one of the most unique places in the world, the aircraft cemetery. There are more airplanes than ever you may have seen in your life in this museum. The display of the aircraft are both indoor (hangar) and outdoor. The variety of aircraft displayed are amazing from rather small fighter jets to small and large helicopters and to the World War 2 era aircraft. Some of the aircraft seem to be those used well before the World War two, but not so sure. There is a also a bus tour for the aircraft graveyard from the museum.