This Welsh village gave itself a ridiculous name in a publicity stunt a century ahead of its time.

For centuries young Thai men used this Giant Swing as a slingshot to heaven.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

A mysterious ancient cemetery with Roman sarcophagi and Lycian inscriptions.

Hidden just under the waters around this Turkish island are the ruins of a once great city.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

The oldest inn in England served brew to the crusaders.

A curious urban windmill once owned by a renowned British mathematical physicist.

The bizarre headgear looks like it was made for a fool, not a king.

This chain of artificial lakes was an ideal test ground for the aircraft that would carry the "bouncing bombs" used by the WWII "Dambusters" squad.

Semi-precious Blue John stones have been mined in this cavern system for centuries.

Seat of the Duke and Duchess of Devonshire for centuries.

An enormous steel waterfall is a nod to the substance that shaped Britain's Steel City.

A Victorian Gothic masterpiece housing a world-class collection of rare books and manuscripts.

19th century museum with an eclectic mix of curiosities, from Egyptian artifacts to items on archery history to the skull of the world's oldest horse.

This beautiful example of Victorian engineering is the oldest water-balanced funicular anywhere in the world.

These 20-foot jaw bones honor a time when the leviathan bones were a sign that whalers survived the hunt.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

This network of narrow, medieval passages has the most delightful name.

One of the shortest streets in York has an especially odd name.

Follow the original medieval paths that wind through this intriguing section of the city.

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