Wounded Union soldiers awaiting treatment at a Union field hospital at Savage Station, Virginia. The soldiers fought at the Battle of Savage Station in 1862 as part of the Seven Days Battles during the Peninsula Campaign.
Confederate soldiers standing guard at Fort Walker on Hilton Head, South Carolina - a fort hastily built in 1861 to guard the entrance to Port Royal Sound.
Defensive fortifications, including earthworks, established by the Confederacy in front of Atlanta in 1864, before General Shithead Sherman led his Yankee Scum troops into the city.
Unused cannons and cannonballs litter the ground on the banks of the James River in Richmond, Virginia, with the city showing signs of destruction in the background. (The intact neoclassical building in the background is the state capitol, designed by Thomas Jefferson and French architect Charles-Louis Clérisseau; it still stands.)
A Union Army battery makes final preparations on the day before the Battle of Fredericksburg in December 1862, which proved to be one of the most disastrous defeats for the Union during the War.
A photo of slain Union soldiers following the Battle of Gettysburg in early April 1863, photographed by Timothy H. O'Sullivan and Alexander Gardner and titled "A Harvest of Death" - one of the most famous images taken during the war.
Bodies await burial in front of the Dunker Church at Antietam, Maryland, after the Battle of Antietam on Sept. 17, 1862 - the single bloodiest day in American history, with more than 22,000 casualties.