An abandoned castle owned and ignored by Masons carries a cursed history.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

This old cement mine has been used as everything from a mushroom farm to a recording studio.

This once luxurious Catskills resort is now a haunting ruin.

The home of former Heavyweight Boxing Champion, "Gentleman Jim" Corbett.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

This abandoned factory on the Hudson River once churned out a million bricks a week.

Paranormal investigators claim this abandoned asylum is the most haunted spot in the eastern U.S.

A bizarre roadside attraction and the first instance of miniature golf in the world.

These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.

This abandoned ironworks was once the most important military supplier in America.

A castle inspired by medieval architecture is hidden in the woods of Connecticut.

This abandoned psychiatric hospital once housed more than 4,000 patients in the middle of a quaint New England town.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

A mysterious air force base built to resemble a Long Island fishing village.

A tribute to the hard-working men and women of Grumman, who crafted F-14 fighter jets.

Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

A formerly abandoned mental institute, now back in business.

The former estate of the Guggenheims, part of the opulent Gold Coast that inspired the Great Gatsby.

An abandoned Gold Coast-era mansion once intended for the exiled ruler of Albania, who never arrived.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

This once sprawling resort now sits abandoned, filled with graffiti and vibrant colors from an era long passed.