One of America's founding fathers lived in this London lodging between 1757 and 1775.

A commemorative plaque at the door pays tribute to an "American Patriot" known for his betrayal.

A discarded movie prop that was the original monolith for "2001: A Space Odyssey."

The Great Fire of London and the regulation of one-way streets both started in this alley.

According to legend, this tomb holds the secrets to time travel.

The "beautiful" equation predicting the movement of all electromagnetic particles is engraved in front of Newton's tomb.

A faded reminder of what was once a common sight in London during the Blitz.

The taxidermied remains of a once-great parrot.

The commemorative stone column conceals a secret laboratory.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

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

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

Two plaques commemorate the site of Shakespeare's first theatre.

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

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

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

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

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

The final resting place to 300 Victorian-era pets hides inside the city park.

Eighty million natural history specimens call this gargantuan museum home.

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

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

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

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