This stone gatehouse was once the entrance to a historic mountain resort, and it had a cameo in a cheesy cult horror movie.

The lost town of Neversink, sunk by New York City.

"Gnome Chomsky" was once the largest gnome in the world, but is now simply tall for his kind.

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

These layered sandstone mountains in China look like they are made of pressed crayons.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

Largest lake in Great Britain measured by surface area.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

These fantastically named natural pools look like something out of a Scottish myth.

Few other hotels can rival the grandeur of the Castle in the Rockies.

Outsider art meets hard scrabble mountain life in this woodcarver's home/art piece.

Every fall this lake mysteriously drains, like a bathtub with the plug pulled out.

Fossils, railroads, and waterfalls!

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

This hospital fell into ruins after failing to act as the advocate for the mentally ill it was designed to be.

The internal railway of one of the biggest steel plants in America has been transformed into a linear park with unique industrial views.

Rusting away on the edge of New Jersey are the remains of a Cold War missile launch site.

These unassuming lighthouses have seen the first reading of the Pledge of Allegiance, the first wireless transmission, and more than one mystery.

The western-most fortress on the Great Wall of China has gone from a strategic stronghold to a kitschy tourist carnival.

The once highest point in China blends symbolic design with a kick of adrenaline.

A lush desert oasis in the shape of a narrow crescent.

One of the U.S. Forest Service's only mansions is outfitted with a dinner table for floating food.

A once grand hotel is being retaken by the wilderness it once capitalized on.