Banksy gives themself artistic license with this piece of London street art.

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

A cluttered and astounding collection of antiquities and curiosities.

A historic house left in "dramatic still life."

A mysterious artist-run cabinet of curiosities and library.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

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

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

Rebuilt remains of a temple to Roman god Mithras.

A vast overgrown cemetery, once known as one of London's "Magnificent Seven."

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

Hear the quietest sound from across the dome.

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

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

The curios of pharmacist and collector Henry Wellcome.

The signs of a long buried road can still be found hidden beneath a London sewer grate.

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

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

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

One part local history, 99 parts gruesome haunted house.

An unusual round church in London with a Templar past.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.