The bar where "The Great Train Robbery" was planned was once a nexus of high society and low morals.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

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

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 naturally mummified 2,000-year-old man.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

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

This 1920s Dutch barge is now a floating bookstore.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

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

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

Scattered throughout London are ancient remnants of the city's former bounding wall.

A historic London pub with prison cells in the cellar and a "spy room" on the second floor.

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

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

Hear the quietest sound from across the dome.

Eighty million natural history specimens call this gargantuan museum home.

Catacombs turned marketplace.

Rebuilt remains of a temple to Roman god Mithras.

The curios of pharmacist and collector Henry Wellcome.

One part local history, 99 parts gruesome haunted house.

An unusual round church in London with a Templar past.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.