This former theme park in New York's Adirondack Mountains fell into ruin before being resurrected as a state-run campground

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

In the woods of New Jersey lie the ruins of a munitions village abandoned after World War I and the remnants of a 1920s wooden racetrack.

Home on the Hillside, and home of the first breakfast cereal.

The resting place of a Civil War celebrity's amputated limb.

The oldest bridge in South Carolina may have been designed by the same man who created the Washington Monument.

Ruins of a once-opulent grand Victorian resort.

Once in a state of dilapidation, this candy-inspired fortress is now being revived.

Pennsylvanian mass grave and possibly mass murder.

This abandoned Civil War fortress is slowly being swallowed by the waters of Lake Borgne.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

Ruined pieces of stone and a swimming pool are all that remain of an amusement park swept away by a flood.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

Despite its lavish ornamentation, and wholesome lifestyle of its devotees, this mountain commune has faced its share of issues.

Live long and prosper in Tennessee.

"Not too many people can say they've had a nuclear bomb dropped on them, not too many would want to." — Walter Gregg.

The first spinning jail built in the United States is the only one that still turns.

For over 80 years, Mayan ruins stood proudly in a most unlikely location.

The Home and murder site of the witch of Rehmeyers Hollow.