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

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

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

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

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

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

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

Hidden behind a wall for decades, this masonic lodge was only rediscovered during renovations.

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

An artistic tribute to the famous singer, just around the corner from where he was born.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

Repository for more than 22 million pickled specimens.

The television series' iconic giant foot was borrowed from this classical painting.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

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

The remains of Crystal Palace Great Exhibition of 1851.

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

A cluttered and astounding collection of antiquities and curiosities.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

Hear the quietest sound from across the dome.

A historic house left in "dramatic still life."

A little slice of Japan and its aesthetics in London's Holland Park.