The Carnegie Science Center is a a science museum. It's located near on the north side of Pittsburgh, near the stadiums. It has a Omnimax theatre (Rangos), a World War II submarine (the USS Requin), a 2,300 sq ft miniature railroad, and a planetarium. The complex totals 186,000 sq ft (one for every mile a light travels in a second :). It has over 250 hands-on exhibits covering 45,000 sq ft.

The Carnegie Science Center was built in 1991 at it's current location. It was originally known as the Buhl Science Center, founded in 1939.

based on personal information as well as information from Carnegie Science Center's web page