In addition to traditional exhibit halls, OMSI features a planetarium, an OmniMax theater, and the USS Blueback, the last diesel-powered submarine built for the US Navy. First opened to visitors in 1937, Timberline Lodge is a living museum. The lodge is the only structure of such size in the United States to be built by hand from local wood and rock in the Twentieth Century. Inside, it features handcrafted furniture, wrought iron, and W.P.A. era paintings. The Rachael Griffin Historic Exhibition Center within tells the whole story.
Admission is free.