Map showing Smithsonian museums located around the perimeter of the National Mall in Washington, D.C., from 3rd to 15th Streets between Constitution and Independence Avenues, approximately 1 mile (1.6 ...

Stretching from the Lincoln Memorial to the U.S. Capitol Building, the National Mall is a tree- and museum ... very friendly and helpful as well. The attraction is open 24/7 and free to visit.