2 youth and 2 adult admission passes to OMSI. Explore the permanent exhibits, which include the Turbine Hall and the Auditorium. OMSI's historic Turbine Hall is the home of many popular hands-on exhibits and labs. And you won't want to miss the Ends of the Earth: From Polar Bears to Penguins exhibit that will run from Oct. 27, 2007 - Jan. 6, 2008. Travel from one end of our globe to the other to explore the fascinating (and cold!) worlds of the Arctic and Antarctic. This 6,000 square-foot exhibit is full of fun, interactive and artifact-based exhibits and multimedia experiences. Discover the unique nature of the Earth's polar regions, the science being undertaken there, and how these regions are indicators of climate change on our planet. Then from Feb. 1 - Sept. 1, 2008, look for Dinosaurs: China's Ancient Giants!