We went to the Aquarium at Fair Park, and then on to the Science Place (which is now called something else, but I can't remember) yesterday. We only went to the lobby of the Science Place, but they have cool stuff there to do for free. We had a lot of fun, and the kids didn't want to go home! They actually wanted to spend more time outside playing on the many cool paths through the pond, than in the aquarium itself! We really should try to go there more than once a year!