Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

Site of a classic 19th-century physics experiment to prove the earth is rotating.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

France's most famous cemetery, with some of its most curious tombs.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

A natural wonder in south Denmark.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

This spooky statue sits outside a famous Prague theater.

A series of playful yellow penguins share a serious message about the environment.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

What looks like a suicide in progress is actually a statue of Sigmund Freud.

Macabre astrological automaton clock dating to the late 1400s.

A church of bones, decorated with 40,000 human skeletons.

A little sculpture with a large wardrobe.

Hiding the longest subterranean river known in the world.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

Climb inside an iron crystal magnified 165 billion times its normal size.

Hidden behind musical flora and forgotten for over a thousand years, this cave is now a neon dream.

A son-and-daughter meat market, hawked by mom and dad.

Climb to the top of the world's largest seated bronze Buddha.

Natural arch offers panoramic views of Yangshuo's karst hills.

This fairy tale forest hides scenes from some of the more obscure and bizarre Western nursery stories.