That's awesome. I don't live anywhere near one, so anytime I go on vacation I check out the local one.
If you are ever in Flagstaff, AZ, be sure to go to Lowell. I've been out there twice. They have loads of great educational stuff, you can tour most of the place in the daytime, visit the telescope/camera that discovered Pluto and Lowell's big refractor. At night you can look through Lowell's scope but the line is usually at least a hundred people when the weather is nice. There's also a very cool walkway where they have the solar system to scale, you start at the Sun and within a few steps pass the Earth, then it's a very long walk out to Pluto.