Catacombs turned marketplace.

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

Scattered throughout London are ancient remnants of the city's former bounding wall.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This one has sailed five times as far as Sir Francis Drake's famous ship.

Giant, friendly pelicans in Central London, the most unlikely of places.

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

A hands-off space for graffiti artists to hone and display their skills.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

London's smallest police station is barely the size of a phone booth.

An unusual round church in London with a Templar past.

One part local history, 99 parts gruesome haunted house.

The beams of the New College, Oxford dining hall come with an amazing story.

England's most notorious suicide spot.

Regency-era excess on the English Coast.

The quiet field that inspired one of the most famous songs of all time.

The stately remains of Llywelyn the Great's mighty fortress.

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

Ancient snack bar of the Roman Empire re-opened.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

Massive galleon from a box-office bomb docked in Genoa.

Pilgrimage site for star-crossed lovers.

The mark of the Devil's horns on a marble column in Milan.