This 1920s Dutch barge is now a floating bookstore.

This once-controversial and slightly confusing statue of Achilles was built out of captured cannons.

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

A unique tribute to the millions of animals who served and died for the British military.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

Curious crustaceans support an obelisk from ancient Egypt that now stands in modern-day Central Park.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

Elevated freight railway turned wildly successful urban park.

New York City's smallest piece of private property.

In a city crazy for seashells this museum educates and amazes visitors using the wonder of cast-off exoskeletons.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.