OMSI 
1945 SE Water Ave.
Portland, OR 97214
503-797.OMSI
http://omsi.edu/
Museum: Science, Walk
A world-class tourist attraction and educational resource that puts the “WOW!” in science for the kid in each of us. Five exhibit halls and eight science labs offer 219,000 square feet of brain-powered fun through hundreds of interactive exhibits and hands-on demonstrations. OMSI’s multi-attraction complex features a big screen OMNIMAX Theater, the Northwest’s largest planetarium, and the USS Blueback, the last fast-attack, diesel-powered submarine built by the U.S. Navy and after serving for 31 years, the last of its kind to be decommissioned.