The St. Louis Science Center is one of the only fr...

The St. Louis Science Center is one of the only free non-profit science museums in America and they do an excellent job of rotating in new exhibits, movies, and activities. My favorite thing to do is to see an educational Imax movie in the Omnimax Theater because it is projected on a dome ceiling that fully surrounds your vision. My second favorite thing is to go to the planetarium, lay on a mat, and relax while learning about the solar system.