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

A famous burial ground with a history both grim and literary.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

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

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

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

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

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

This hidden green space is the city's second largest conservatory.

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

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

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

The largest of London's subterranean rivers and once a mad, bad center of London life.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

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

An incarceration museum on the spot of possibly the oldest prison in England.

Hear the quietest sound from across the dome.

The anatomical-pathological collection of a man who changed surgery.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

The curios of pharmacist and collector Henry Wellcome.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.