The Exploratorium is a huge hands-on science museum. Everything sciencey that you could ever want to touch (or never imagined touching) is there. It's slightly

The Exploratorium is a huge hands-on science museum. Everything sciencey that you could ever want to touch (or never imagined touching) is there. It's slightly geared toward the younger crowd, but my wife and I went last year and loved it. Stayed almost the whole day. Everyone should visit at least once.