This one-time health resort was used by aristocrats around the world.

You would never come across this tiny green oasis if you didn't know it existed.

This legendary giant, born from vegetables, terrorized townspeople and cheated local children in games.

This statue dedicated to the story of a Flemish boy and his dog was relatively obscure in Belgium, but a cult sensation in Japan.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

A little sculpture with a large wardrobe.

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

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

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

The Swiss artist's bulbous and overgrown shape-shifting sculpture controversially graces the center of Bern.

This simple apartment may have inspired some of the most important theories in the history of science.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

This artificial archipelago was supposed to resemble a map of the world.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

A faithful reproduction of Al-Jazari's enormous water clock.

This enormous sports car themed amusement park is home to the world’s fastest roller coaster.

The world’s largest LED display, built over an F1 race circuit.

Whitewashed mosque contains the world's largest carpet.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.

An amazing collection of wax anatomical models and terratological models.

The mummified relic of St. Catherine sits forever on a golden throne.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.