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

A provocative museum dedicated to the genre and the harsh realities that inspired its origins.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

Lucerne's central prison was converted into a tourist hotel with a bare minimum of changes.

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

The bears of Bern have been a city highlight for over 500 years.

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

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

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

A gigantic, symbolic artwork covers the side of the building.

Outside a market, beautiful murals pay tribute to fruit sellers and farmers, as well as a few legendary artists.

Mexico City's largest market contains a Willy Wonka-esque wonderland.

This crumbling Art Deco movie palace in Mexico City has been abandoned for two decades.

These haunting ruins of a 700-year-old Prehispanic city have witnessed centuries of wars and massacres.

A museum in the former home of Marxist revolutionary Leon Trotsky.

Diego Rivera's massive tiled fountain and failed infrastructure project.

The only castle in North America to ever house European sovereigns.

Twelve natural mummies are displayed in the crypt of this former monastery school.

The famous artist couple lived and worked here, in two different houses separated by a bridge.

66,000 pieces of art, donated by one of the world's richest men.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

A school-themed restaurant where gastronomy is the core curriculum.

This downtown Dallas art installation is always on the lookout.