These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Ship-sized kinetic sculptural fantasy.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Hear the quietest sound from across the dome.

Charles Dickens described the concert room in this amazing Victorian hall as "the most perfect room in the world."

No one is sure if the world's fourth-largest diamond had been found in a rubbish heap or was pawned by Napoleon's mom.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

Made famous by 'Star Wars,' these troglodyte homes face an uncertain future.

The original film set of Luke Skywalker's Tatooine home from the 'Star Wars' trilogy.

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

This striking observation tower shaped like a spinnaker sail is the newest icon in historic Portsmouth.

The world's oldest operational public pier railway has shuttled seagoing commuters from ship to shore since 1909.

A half-mile-long stretch of medieval forts built after a devastating pirate attack persists amid the modern port city.

Soak up some local history in this restored Edwardian era swimming pool.

This silent sentry in the crypt below a large Gothic cathedral is often knee-deep in water.

Eighty million natural history specimens call this gargantuan museum home.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The curios of pharmacist and collector Henry Wellcome.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

The remains of the great moral philosopher reside in a university in London.