A Roman spa buried deep beneath the City of London.

The last four extravagant street signs of London's historic banking street.

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

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

You'd never know the houses at 23-24 Leinster Gardens were fakes—until you see the train tracks on the other side.

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

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

This museum tucked below a charming cafe gives a brief snapshot of photographic history.

This artist's home turned gallery/museum preserves the creator's love of "Eastern" influences.

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

London's largest outsider art museum.

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

Traveling collection of amazing automata.

A mysterious artist-run cabinet of curiosities and library.

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

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

English antique dealers with a taste for the unusual.

A clock designed to run with perfect accuracy for 10,000 years.

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

One part local history, 99 parts gruesome haunted house.

An unusual round church in London with a Templar past.

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

This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.