This overlooked street light once served as a KGB dead letter box.

A secluded green oasis amidst the towering skyscrapers, bears an unusual moniker that reflects one of the city's oldest guilds.

Sculptor Antony Gormley used chaos theory and fractal growth to design his tallest creation.

Chelsea's soldiers were given strict orders when crossing this historic bridge.

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

A museum that chronicles the interesting and often dark history of the London docklands, once one of the major trading ports of the world.

Heralded as the oldest statue in London.

The final resting place of a German diplomat's beloved companion.

This sculpture encompasses the emotion of rail travel.

This 1920s Dutch barge is now a floating bookstore.

Since 1887, this old-school shop has stacked its shelves with extraordinary coffees and teas.

Metal horses galloping through a London fountain provide a link to the city's past.

This Grade II Listed Building with an Art Nouveau façade once contained a unique print shop.

Banksy's image of a naked man dangling from the window of a sex health clinic.

These medieval tunnels provided water to the city above through centuries of civil war and plague.

Two women with a flair for both adventure and artful clutter created this singular round home.

At just 25 inches at its narrowest point, it's one of the tightest streets in the world.

Old Tudor home moved on thick iron rails to a new spot.

It is still illegal to "quarrel" at this unlikely urban oasis built on top of an electrical substation.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

Order bagels and lox from an iconic Jewish delicatessen with nearly a century of history behind it.

Order a salt beef-loaded beigel at any hour of the day or night at this East End institution.

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

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