Entertainment ideas!

I have a meeting tomorrow morning and my husband and I are going out to lunch after it. We have to kill 2 hours from the end of the meeting to our lunch date, and need some ideas. We aren't interested in any of the movies playing in the theater, and we can't really do anything outdoors because we live in AZ and it's still hot here. Free/cheap would be best because our entertainment budget has been cut to make room for fertility treatments. I need suggestions! Thanks in advance ☺️