3526183 Maryland Heights: Siege of Harpers Ferry, 1863 (oil on canvas) by MacLeod, William Douglas (1811-92); 76.2x111.76 cm; Corcoran Collection, National Gallery of Art, Washington D.C., USA; (add.info.: Harpers Ferry, West Virginia, strategically located at the confluence of the Potomac and Shenandoah rivers, changed hands several times during the civil war. In June 1863, Robert E. Lee lead the Confederate Army of Northern Virginia from Richmond into Maryland. Union soldiers, camped above the town, anticipated an attack and fortified Maryland Heights. Lee, however, did not attack, but marched onto Gettysburg, Pennsylvania.); American, out of copyright.