According to local lore, this narrow passageway through two large rocks was accidentally created by the devil himself.

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

Jacksonville's highways rendered this century-old grammar school unusable.

Every equinox this Maya pyramid puts on a spooky ancient light show.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

Ruins of a 10th century church tucked away deep in a botanical garden.

There's nothing creepier than a cemetery next to a clown motel.

Just a man taking his prehistoric pet for a stroll.

A tunnel of hardened lava along Maui’s famous Road to Hana.

A waterfall 600 ft. inside a mountain, once the bane of gold miners, is now a spectacle of nature.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

The most unique castle in all of Southern California, entirely constructed from repurposed materials.

A bronze statue dating back as far as 1252, still has remnants of gold on its right cheek from ancient gilding.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

This set of rickety spaceships are prepared to give alien travelers a place to relax and go to the bathroom.

Mexican food and folk art.

A humid oasis combines recreation with exploration in a unique underwater cavern.

One of America’s oldest and spookiest hotels, thanks to the residency of ghosts, dead presidents, and Alfred Hitchcock.

An architect's childhood fantasy treehouse made real.

How did a French journalist’s grave become the sexiest statue in the cemetery?

A peaceful, unique botanical garden complete with waterfalls, mini islands, and swans.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

This stately estate house features a tower covered in a bright, modern mural.