Union Soldiers Posing With a 24-Pounder Gun in Fort Corcoran During the Civil War in Arlington, Virginia

Union soldiers posing with a 24-pounder gun in Fort Corcoran during the Civil War in Arlington, Virginia. Animated stereoscopic photographs.

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USS Monitor on the James River

Union Navy officers and sailors on the deck and turret of the USS Monitor on the James River a few months after its fight with the CSS Virginia at the Battle of Hampton Roads, 1862. Two cannonball impacts can be seen on the turret on the left. By James Gibson. Animated stereoscopic photograph.

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