Smithsonian American Art Museum
The Smithsonian American Art Museum (SAAM; formerly the National Museum of American Art) is a museum in Washington, D.C., part of the Smithsonian Institution. Together with its branch museum, the Renwick Gallery, SAAM holds one of the world's largest and most inclusive collections of art made in the United States from the colonial period to the present.
Source: Wikipedia — Smithsonian American Art Museum (CC BY-SA 4.0)