A wall of chewing gum moonlights as collective art.

San Francisco's newly reopened hands-on science museum.

Come for the flowers, stay for the bats!

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

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Belgium’s famous peeing statue has worn many hats (and coats, and pants), which are on display at this small museum.

A giant bug impaled on a 75-foot-tall needle.

The "stairway to heaven" lookout tower was built to resist weather, arson, and the laws of physics.

This whimsical statue dumps water on its head to symbolize knowledge flowing into his brain. Or maybe booze.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

Portlandia is the second-largest copper repoussé statue in the United States.

10,000 flowered plants bloom in the City of Roses.

Brussels' favorite peeing boy has a sister.

A little sculpture with a large wardrobe.

Meet the bronze beloved pet to a family of famous peeing statues.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.