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

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

Collection dedicated to brands, packaging and advertising.

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

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

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

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

English antique dealers with a taste for the unusual.

Abstract dinosaur models in London.

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

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

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

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

A historic London cemetery now serves as a nature park incorporating gravestones & memorial statues.

London's old-school healing garden.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

One of the world's largest collections of pathological specimens.

The remains of Crystal Palace Great Exhibition of 1851.

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

The curios of pharmacist and collector Henry Wellcome.

Hidden beneath the streets of London is a secret subway that only carried mail.

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

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

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