OMSI (Oregon Museum of Science and Industry)
1945 S.E. Water Ave., Portland, OR 97214
One of the nation's leading science museums, OMSI is 219,000 square feet of brain-powered fun. Five enormous halls bring science to life with hundreds of interactive exhibits and displays. You can experience an earthquake, take part in live lab demonstrations, see a movie in The Empirical (a 4 story giant screen theater), explore the universe in a world-class planetarium and even tour a real submarine. Located on the east bank of the Willamette River along the scenic Eastbank Esplanade. Open daily; admission charged.