At just 51 feet and 10 inches long, it's the shortest street in England.

This is Britain's one and only clock concealed in the pavement.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

This artificial archipelago was supposed to resemble a map of the world.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

Inside this art museum resides one of Glasgow's most famous musical instruments.

An icon of the Battle of Britain is frozen in flight in a grand Victorian museum.

This vessel is the final ocean-going paddle steamer in the world.

The Guinness Record holder as the "tallest cinema in the world" is a building with screens in almost every one of its 12 floors

One Maltese man’s hobby became an extensive collection of restored automobiles, motoring paraphernalia, and antiques.

The mysterious “claw marks” said to be left by the Devil on Pisa’s famous cathedral.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

Next to the Leaning Tower of Pisa is a cemetery home to ancient sarcophagi and disturbing murals.

Pompeii's less famous neighbor is still revealing her secrets.

Ancient snack bar of the Roman Empire re-opened.

The walls and streets of the ancient city are peppered with penises.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

Erotic art covers the walls of the largest ancient pleasure palace.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Botero's plump bronze horse presiding over Barcelona's airport terminal

Mountain where Jesus was first tempted by the Devil.

Barcelona's only remaining tram system takes riders to the Tibidabo funicular.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.