This waterfront attraction is exactly like your junior high school science class — if your classroom had been 330,000 square feet and full of fun, hands-on science and technology exhibits aimed at inspiring creativity and curiosity in minds young and old. The Exploratorium, built into what was once a decaying Pier 15 almost three football fields long, offers a range of experiences, from exploring creativity through tinkering on contraptions to experimenting with magnets, electricity, light, mirrors and bubbles. Some of the exhibits are outside, which is good because the view is a lot better than your science classroom. <