Richmond, Va. The Old Stone House (Washington's Headquarters, 1916 East Main Street)The Old Stone House, located at 1916 East Main Street in Richmond, Virginia, is a historical site significant for its role during the American Revolution and the U.S. Civil War. Originally built around 1742, it was used as General George Washington's headquarters from December 1780 to March 1781 when he planned and coordinated the Siege of Yorktown, a decisive victory that led to the end of the American Revolution. During the Civil War, it served as a hospital for Confederate soldiers. Today, it stands as an important reminder of both conflicts in American history, now preserved and maintained as a museum by Historic Richmond.