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

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

This South London cemetery holds the remains of more than 15,000 people.

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

Rebuilt remains of a temple to Roman god Mithras.

The curios of pharmacist and collector Henry Wellcome.

Since 1874, this macabre collection has developed into a museum devoted to Scotland Yard's mementos of dastardly deeds.

A quiet memorial to those who died saving others in the heart of the City of London.

Museum dedicated to the UK's first charity for abandoned children, with keepsakes of the mothers who left them behind.

The remains of the great moral philosopher reside in a university in London.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

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

Hear the quietest sound from across the dome.

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

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

A friendly pub with a sordid past in cock fighting.

A mysterious artist-run cabinet of curiosities and library.

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

The taxidermied remains of a once-great parrot.

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

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

An unusual round church in London with a Templar past.

A cluttered and astounding collection of antiquities and curiosities.