Cooper Hewitt, Smithsonian Design Museum is a design museum at the Andrew Carnegie Mansion in Manhattan, New York City, along the Upper East Side's Museum Mile. It is one of 19 Smithsonian Institution museums and one of three Smithsonian facilities located in New York City, along with the National Museum of the American Indian's George Gustav Heye Center in Bowling Green and the Archives of American Art New York Research Center in the Flatiron District. Unlike other Smithsonian museums, Cooper Hewitt charges an admissions fee.