Washington, DC

ZIP code 20208 is a special-purpose postal code associated with the Smithsonian Institution in Washington, D.C., rather than a typical residential area. Its most notable nearby landmarks are the Smithsonian Castle and museums on the National Mall, including the National Museum of Natural History, the National Museum of American History, and the National Museum of African Art. The Washington Monument and U.S. Capitol are also prominent landmarks in the surrounding area.