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.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

A naturally mummified 2,000-year-old man.

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

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

The television series' iconic giant foot was borrowed from this classical painting.

A cluttered and astounding collection of antiquities and curiosities.

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

The curios of pharmacist and collector Henry Wellcome.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."