628-5774, 949 E. 2nd St., central Tucson. Adults $8. Ages 65+ $6. Adult student $5. Ages 7-17 $4. Ages 6 and younger free with family. AHS Members and Veterans are free. Two-for-one admission the first Tuesday of each month. There is no admission fee for the Research Library. Mon.–Sat. 10 a.m.–4 p.m. Allow 2 hours.Arizona’s oldest historical museum. Displays and artifacts follow our history from Spanish conquistadors to statehood. The permanent exhibits include period rooms, a life-size copper mining tunnel, and transportation hall.