Smithsonian is a side platformed Washington Metro station at the National Mall in Washington, D.C., United States. The station was opened on July 1, 1977, and is operated by the Washington Metropolitan Area Transit Authority (WMATA). It is a stop on the Blue, Orange and Silver Lines. The station's south entrance is at the southwest corner of Independence Avenue and 12th Street, Southwest, the street elevator is at the northwest corner of the same intersection, and the north entrance is on the south side of the Mall near Jefferson Drive, Southwest.