The Greater St. Louis metropolitan area has many cultural institutions and museums including: * The Gateway Arch and the Museum of Westward Expansion. The Museum of Westward Expansion is an underground museum beneath the Gateway Arch focusing on St. Louis' role in the expansion and settling of the United States west of the Mississippi River before and after the Louisiana Purchase. * The Saint Louis Art Museum, Missouri History Museum, Jewel Box, Saint Louis Zoo, McDonnell Planetarium, and the Muny are all located in Forest Park, the city's premiere park. * The City Museum has a collection of re-purposed architectural and industrial objects constituting a multistory play-land. It also features an aquarium and a museum of historical architecture. * Grand Center is a historic arts and cul