One pass good for up to 4 visitors for general admission to the Carnegie Museums of Art and Natural History.  Two of the four Carnegie Museums in Pittsburgh. Carnegie Museums of Pittsburgh has a fascinating history dating back 116 years. But the story of who we are today, a collection of four dynamic, distinctive museums, and the Pittsburgh region's home for great art and science exploration, is the real page turner. Carnegie Museum of Natural History, Carnegie Museum of Art, 4400 Forbes Avenue, Pittsburgh, PA 15213.  Expires 12-31-2020.