Confession: I have the shortest attention span in the universe when it comes to museums. But! The planetarium kept me engaged far longer than any other museum I've ever been to. The films, especially, are really well done. Make some time to sit in a dark theater and stare up at the stars. When you're in town, look for Adler After Dark. This happens once a month; it's a 21+ event on a Thursday night, and it's a whole lot of fun. Bring a date!