Exquisite wall sculptures carved in secret by an early quarryman in an obscure corner of the Paris Catacombs.

This century-old grotesque has a mysterious history and may not actually be a rabbit.

Under a church hides a forgotten 13th-century ossuary containing the remains of around 2,500 people.

Something's watching you.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

Elvis's own personal tropical hideaway.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The final resting place of New Orleans' most famous voodoo priestess.

The world's largest prehistoric copper mine had 30,000 animal bones scattered throughout the maze of passageways.

The oldest inn in England served brew to the crusaders.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

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

Twice a day this ancient path disappears with the tides, leaving the Holy Island of Lindisfarne out to sea.

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

This enchanting Victorian estate was home to the world's first hydroelectric power generator.

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

A million and a half tons of earth were used to create one of the world's largest land sculptures.

A locomotive made from 185,000 bricks celebrates the town's pioneering railway history.

A museum and gardens with unusual plants and a history of progressive programming for the blind.