With a history that dates to October 24, 1939, the Carnegie Science Center is the most visited museum in Pittsburgh. Among its attractions are the newly constructed Buhl Digital Dome (which features the latest in projection), the Rangos Omnimax Theater, the Miniature Railroad & Village, the USS Requin (a World War II submarine) and roboworld, touted as "the world's largest permanent robotics exhibit" with more than 30 interactive displays featuring "all things robotic", including the first physical home for Carnegie Mellon University’s Robot Hall of Fame.