The Kirkland Monument remembers a selfless Civil War hero who braved the battlefield to give water to his dying enemies.

A small, forgotten prison cemetery marked only by a wrought-iron fence and eerie depressions left in the ground.

The graveyard holding the remains of George Washington's slaves was forgotten for nearly 200 years.

A graveyard that dates back over 200 years stands near a busy shopping center.

The largest cemetery for enslaved people in Loudoun County was almost lost to history, if not for the research of a minister.

These figures float and flutter in this fountain crafted by famed Swedish sculptor Carl Milles.

Once forgotten and built over, this historic Black cemetery now houses a poignant memorial.

This grave marks the passing of a historic Jane Doe whose identity remains a mystery to this day.

A small and somewhat hidden memorial to 68 local veterans of the Vietnam War.

The remains of a historic plantation nestled in between a parking lot and the rental car return at Reagan National Airport.

The rogue roots are gradually consuming some of the historic marble grave markers.

In what is rumored to be an intentional act of spite, this memorial almost completely obscures the nearby grave of a senior officer.

People escaping slavery may have hidden inside a corpse vault.

A replica of the famous memorial statue at the Normandy American Cemetery hides in an office building in downtown D.C.

A striking memorial to the 21 lives lost in an explosion at the Washington Arsenal

The privately owned cemetery that holds room for Washington's finest when they step down from life.

This grisly headstone doesn’t seem to be resting in peace.

The towering figures were created from the cemetery's fallen old-growth trees.

A haunting tribute to pioneering photographer Clover Adams.

The man who first patented the Ouija board rests in peace beneath a headstone that playfully reflects that achievement.

A retired firefighter created this contraption so he and his family wouldn't die if accidentally buried alive.

Holding the most bodies of any cemetery in the United States.

The end of the 4 Line is also the end of the line for 300,000 souls in one of NYC's most illustrious cemeteries.

The mysterious headstone of an unidentified bank robber was seen visited, every year, by a woman in black.