Here are just a few other tourist attractions in Tucson:
Biosphere2
Originally created to explore the potential of space colonization and study closed ecosystems in general, it now serves as a tourist attraction 20 minutes north of Tucson.
Discovery Park
A 200 acre educational museum (image from website) with particular emphasis on space technology and science.
Pima Air and Space Museum
The largest air and space museum in the Western US. (image from website)
Arizona-Sonora Desert Museum
A world-famous museum and botanical garden displaying desert creatures in their natural habitat (image from website).
Old Tucson Studios
A movie studio and theme park featuring Tucson as it was during the times of the Old West (image from website).