A relic from one of London's worst 19th-century slums.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

A historic hill of tall tales, with one rather special tree.

Buried for centuries, this hidden cellar is all that remains of London's medieval Whitefriars Monastery.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

This long-hidden space above Westminster Abbey now displays the battle gear of the legendary King Henry V.

The 2,000-year-old beam is tucked within the pedestrian entrance to the old London Bridge.

The breadfruit-adorned final resting place of the infamous Captain of the HMS Bounty.

A Roman spa buried deep beneath the City of London.

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

A flourishing garden with pigs, donkeys, goats, rabbits, guinea pigs, chickens, ducks, and sheep.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

The first tunnel to be dug beneath a river, repurposed as an art and museum space.

The Florence Nightingale Museum is home to the famous nurse's most treasured possession: her beloved pet owl.

This elaborate Byzantine-style building was designed for a not-so-pretty purpose.

The lab where the scientist made his groundbreaking discoveries is preserved on the basement floor of the Faraday Museum.

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

A Victorian park cemetery, standing on the site of what was once the Great North Wood.

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

This landmark church concealed a crypt packed with bones that was discovered thanks to the London Blitz.

This 1920s Dutch barge is now a floating bookstore.

Claiming to be the oldest hat store in the world, this historic haberdashery had a hand (and a head) in the creation of the Bowler.

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