One of Jeff Koons’s largest sculptures and his first commemorative work.

A giant silver apple a day keeps the perils of capitalism away.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

A museum of magic with a Sadist past.

Theme park featuring miniature replicas of European monuments.

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

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

Head underground and take a tour of the city's working sewer system, and see the underground river Senne, which defined Brussels for centuries before being covered in the 19th century.

A little sculpture with a large wardrobe.

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

From Tintin to the Smurfs, Europe's greatest graphic icons are celebrated in a grand Art Noveau gallery.

Cozy basement bar sports an inventory of over 2,000 beers.

Brussels' favorite peeing boy has a sister.

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

An effigy of a trapped paratrooper dangles from a Normandy church to commemorate one remarkable D-Day event.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

The remains of this castle, known as the Witch’s Eye, watch over the Thur Valley.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

This 135-year-old weather station studied the effects of the climate on human health.

Now harmless, this looming post struck fear into the heart of medieval troublemakers.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.