Collapsing castle on the Hudson river was once the storage site of military surplus business.

European castle ruins in an American state park are actually the product of death and grief.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Home of an evil witch famous within southern folklore.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

A layered tribute to the work of mosaicist Isaiah Zagar.

World's first "penitentiary," meant to be humane, drove men insane.

A key producer of charcoal iron in the early 1800s, the structure still stands today.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.

Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

A Beaux-Arts triumph rises from decades of decay to become the heart of a new innovation district

The haunting "Hell House Altar" is one of the few remnants of an abandoned college that has been a magnet for local legends.

This former tuberculosis research hospital endeavored to cure the dreaded disease with fresh air and positive attitudes.

All that's left of the quintessential "cabin in the woods."

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

The remains of a foundry and old blast furnaces destroyed during the Civil War are preserved in this central Alabama park.

Once one of the largest producers of pig iron in the world.

An eerie and beautiful group of columns mark the site of a grand mansion lost to time and fire.

A rancher expanding a natural spring for his cattle came up with bones – lots and lots of them.

Seth Bullock, the sheriff of Deadwood, built this town immediately after Teddy Roosevelt’s death in 1919.

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

A place where the laws of nature seem to have gone completely berserk... but of course haven't.

The ravine where Jesse James supposedly performed an impossible jump to evade capture.

A miscalculation turns a very shallow freshwater lake into a very deep saltwater lake.