An abandoned desert hamlet swallowed up by sand.

The little-known second castle that William the Conqueror built in York.

The shop's owner has spent decades in the desert wearing nothing but a strategically placed sock.

A retired firefighter created this contraption so he and his family wouldn't die if accidentally buried alive.

This small town's local tradition is to create the world's tallest ice pillar.

A beautiful ruin of a 14th-century Plantagenet castle built by a medieval mercenary.

A striking depiction of Teotihuacan's mysterious "Spider Woman."

This lone tree and dramatic sandstone outcropping are so beloved by Michiganders they can be found on one of the state’s coins.

Two large eyes painted anonymously on a mountain overlooking the city pay homage to an old legend.

This cave system allegedly holds the "metallic library" of a lost ancient civilization.

Believed to be haunted, this old cemetery is beautifully adorned with Spanish moss hanging from the trees.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

The home of Ireland's last leprechauns is officially protected by the European Union.

The striking jade death mask of an ancient Maya king is displayed in a replica tomb in Mexico City.

This natural wonderland is a unique chance to explore a Carolina bay, a mysterious geological formation of unknown origin.

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

A fashion designer's dazzling world of Japanese collectibles is hidden in a warehouse downtown.

You don't have to be a professional jockey to ride in Britain's oldest horse race.

An extraordinary mix of Phoenician, Roman, early Christian, and Byzantine ruins beautifully set overlooking the Mediterranean.

Despite its grandiose name, this enigmatic first-century void under the town is no cave, and it's possibly not a palace either.

Watch the seas clash at the place where according to Maori tradition, the spirits depart for their journey to the afterlife.

On this wooded path, a stained-glass window creates a spellbinding forest cathedral.

This charming candle shop has been in business since 1789.

The verdant mossy ruins of a Franciscan monastery lie in the remote Sintra hills awaiting exploration.