An interactive back-alley mural project remembers the golden age of Kuala Lumpur’s Chinatown.

A giant baby floats in the middle of Singapore’s nature park.

Rainbow shutters decorate this former police station.

The world's largest public collection of PEZ memorabilia.

While many places make the claim, the Library of Congress says this restaurant is the birthplace of the hamburger.

This weeping, 10-foot-tall sculpture was a maquette for a 9/11 memorial.

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

Built hundreds of years ago this downtown iron barrier once protected a much despised king.

A monument celebrating the idea of reaching inaccessible places.

This small Key West museum is packed with dozens of artifacts that illustrate the life of the iconic playwright.

The island residents are known for taking their quirky sense of humor with them to the grave.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

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

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

A forgotten "city of water" underneath the famous Trevi district.

Architectural monsters are devouring this palace's every door and window.

This large, circular tomb is the final resting place of the first emperor of Rome.

This basilica is dedicated to two saints, one of which is known more for his famous quote.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

A statue representing a lost Roman profession that was vandalized for centuries.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

The middle finger of modernity.

One of America's most historic homes also holds a startling literary legacy.

Historic Hull Street was actually the first street with a proper name in the Boston area.