A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

An intriguing three-sided folly is a testament to one man's devotion to Catholicism and the number three.

Seat of the Duke and Duchess of Devonshire for centuries.

Famously misunderstood wonder of the ancient world

This bridge is the first to be made entirely from iron, but designed like it was still made of wood.

A harem-inspired Moorish fantasy design in a Victorian-era Welsh castle.

High Victorian fantasy created a fairytale castle out of a ruined fortress in Wales.

A fantastic castle rumored to be the birthplace of King Arthur.

Three bridges straddle a stream, one stacked upon the other.

This logic-defying 16th-century Tudor manor still stands to the delight and astonishment of onlookers.

An ancient hotspot for spotting schools of fish.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

A former fisherman's hut deemed too small for habitation is now a delightful tourist draw.

Henry VIII's forgotten castle was built by the gunpowder-obsessed king to be defended solely by cannons.

The intended purpose of this unfinished Elizabethan building remains a mystery.

The elliptical citadel resisted the advance of the mighty Ottomans several times, thanks to the military prowess of the "Dragon of Albania."

What happens when you cross a mayor and a painter?

This ominous Albanian fortress houses tanks and downed planes as a reminder of their victories over Western imperialism.

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

A medieval bridge stretches over a sulfur-rich river that leads to year-round natural hot springs.

A naturally beautiful, seemingly bottomless deep blue spring.

A 26-foot shark sculpture—a statement about bombs—set off a municipal battle royale.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.