The world's smallest commercial theater is set up in what was once a urinal for Victorian men.

An ancient hotspot for spotting schools of fish.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

Besieged by war, this castle ruin has crumbled into a peaceful picnic spot.

Pop culture has helped to keep this iconic British building from being destroyed.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

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

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

The oldest continual pilgrimage site in Britain was supposedly created by a gruesome beheading.

This neolithic stone grave has been altered and restored so often its now more neo than lithic.

This stream-carved gorge has inspired poets, hidden smugglers, and trained soldiers, all without losing its beauty.

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

The world's largest collection of artifacts from our history of industrial gas use is hard to simply pass.

This historic club for wayward boys has shaped some of the biggest names in music almost as much as they have shaped it.

The world's largest museum devoted solely to the whirlybird comes complete with its own chopper graveyard.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

Four-story concrete hotel never opened to customers.

A recreation of the doomed ocean liner in the middle of the Smoky Mountains.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

Ruins of a Carnegie family mansion on Cumberland Island.

Manatees congregate around a power plant's discharge canal where the water is especially warm.

Museum of science fiction, utopias, and extraordinary journeys of the mind.