The Phoenix Art Museum is a total treasure. You have to go there when you visit because it has so much inside, all interesting and all educational for young and old.
If you love Indian rugs and cochina dolls, the Phoenix has more original and beautiful examples than anyone else. And if you want to buy some, they are available in the Gift Shop for a BIG, BIG price. Real, authenticated Indian rugs are worth a fortune these days.
You can take tours and the tours are wonderful because the tour guides really love their stuff and are glad to share it. You can go over and over again and not be bored, it's that much fun. Plus, it's air conditioned and anyway you can get out of 120 degree heat in the summer is worth it.
Go, you'll be glad you did. Feed your head, will you.