The world's first floating farm is staffed by one human, three robots, and 35 cows.

A statue of the second-tallest Dutchman in history.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

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

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

One of the newest mosques in a city filled with thousands.

Legend says if you stick your thumb in the hole and it gets wet, your wish will be granted.

This cemetery features modernist statues as strange as its name.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Warsaw's fantastically preserved gasworks...almost.

A once-fairy tale mansion now stands in a state of disrepair.

This Slovak bridge is known both for its connection to a national uprising and its UFO-shaped eatery.

This spaceship sculpture in the middle of the Slovakian capital looks like it just crash-landed.

The shell of a medieval fortress offers commanding views of the area it once protected.

Austria's ultra-modern art museum looks like Cthulhu's giant alien heart.

Bits of architecture from a town destroyed in World War I now decorate this hotel garden.

This small red school was where Germany signed their surrender during WWII.

An image of the legendary saint stands in the shadow of a cathedral she liberated.