Children's hospital in London that operates on royalties received from Peter Pan, which J.M. Barrie signed over in 1929.

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

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

A cluttered and astounding collection of antiquities and curiosities.

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

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

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

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

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

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

The only remaining piece of hull of the most decorated US ship of WWII is this giant name plate.

Go surfing on this urban wave, "hacked" by local surfers.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

This landmark cemetery in Boston was created more than 300 years ago.

The site of Paul Revere's historic two lantern warning.

The tomb of Increase Mather and his son Cotton, influential colonial ministers obsessed with the occult.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

250-year-old farm now features sculptures, a petting zoo and a hippy-bazaar.

An architecturally unique lighthouse that had to be lifted up and moved to avoid falling in the sea.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

A bronze plaque at an intersection in Hoboken marks the place where the game of baseball first took shape.

On the Hudson resides one of the largest clocks in the world.

The prototype for all Nazi concentration camps.