Pima Air & Space Museum, Tucson

This institution is totally dedicated to the preservation of the history of flight, be it commercial, military, or interplanetary. The museum opened in 1976 with just 75 aircraft and has now grown to more than 250 on display. Its newest addition is the Northrop F-5B "Freedom Fighter". Be prepared to spend the entire day if you, or someone in your party, is a flight buff. Exhibits rotate, and special events and conferences are scheduled regularly.