This innovative steam machine was no doubt the most famous of the pioneer locomotives.

This luxury shopping lane has been protected by its own tiny police force for over a century.

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

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

A naturally mummified 2,000-year-old man.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

The elegant structure of this 19th century railroad bridge creates an illusion of infinity.

A network of bells in the pubs and restaurants around Westminster alerts politicians when it's time to cast their votes.

The bar where "The Great Train Robbery" was planned was once a nexus of high society and low morals.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

The yawning maw of this pagan visage is said to bite off the hands of liars.

A medieval fountain lined with 99 unique stone faces whose origins and meaning remain unknown.

Legend has it this fountain built to symbolize the Pope’s power hides a strange secret concerning Neptune's manliness.

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

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

Ancient snack bar of the Roman Empire re-opened.

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

A favorite with sightseers, this Norwegian funicular provides easy access to a stunning view of Bergen and its environs.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

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

Destroyed Serbian army headquarters sits half crumbled in a largely revitalized Belgrade.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

This sweet-toothed bear searching for snacks has been a symbol of Madrid for decades.

The severed head of a 17th-century Irish martyr lies within an intricate golden shrine.