A state park that once served as an important river crossing, and now offers protected lands for endangered plants and animals.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

This abandoned Victorian-style house was built in 1884.

A decaying garage hidden amid the dense forest is all that remains of a once-prosperous dairy farm.

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

Located at the former Lorton Prison the Lucy Burns Museum tells the story of the 91 year history of the prison including the dark chapter of its involvement in the women's suffrage movement.

The former home of the man whose radical ideas changed the nation.

This Virginia railway overpass is said to be haunted by a serial killer in a rabbit costume.

Where pardoned turkeys once spent their all-too-brief final days.

The whole world in one water tank.

A lone historical marker off the highway and scattered debris are all that remain of this Cold War-era missile site.

Standing for over 200 years, the abandoned home of a Revolutionary War hero and later a succession of prison superintendents.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

This ruined quarry once produced the distinctive red sandstone used for construction projects in Washington, D.C.

The oldest surviving one-room schoolhouse in Montgomery County, Maryland.

Burke’s oldest cemetery also houses the victim of the county's grisliest murder.

The most historic church in Fairfax County played a role in the creation of the American Red Cross.

One of the oldest train stations still standing in Virginia played a vital role during the Civil War.

The U.S. Army's giant warehouse of war art includes Hitler’s watercolors and Norman Rockwell oil paintings.

This church is known as "The Home Church of George Washington and George Mason."

The tomb was guarded by soldiers from both sides of the war, and some left their initials carved in the brick.

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

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.

Remains of a historic fountain that was mysteriously lost in the demolition of a D.C. traffic circle.