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

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

An industrial relic is now one of Europe's most staggering art spaces.

What was once a bustling mining installation is now a bustling hub of contemporary art.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

According to this bar, God gave an “11th commandment” to Antwerp: Thou shalt drink beer.

A radio telescope for listening to the stars, based in one of the cloudiest countries in the world.

This giant radio telescope would be a rusting ruin if it hadn't become such a beloved relic.

A UFO-shaped event building originally intended to be a science museum showcasing the future.

Drive past the giant fruit sculptures and up to the window for a menu of fruity treats.

This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

Scale model of St. Peter's Cathedral (Rome) in the middle of a small Dutch town.

Take a stroll through the hellish grotesques of Hieronymus Bosch in this elaborate Netherlands church.

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

The history of sea-faring refuse and disaster is on cramped display in this Netherlands folk museum.

This neighborhood of futuristic ball houses looks like an alien settlement in a science fiction film.

Rich with fauna and flora, nature-lovers can walk across the sea at this UNESCO World Heritage spot.

The 20-mile causeway that separates the Netherlands from the sea.

Go inside a revolutionary, cage-less zoo where 70 species of monkeys roam free alongside their human visitors.

This disused VLF radio station is no longer in service but the surrounding town still bears its name.

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

A condensed piece of China floating in a Dutch harbor.

This hotel was once home to a steamliner company and became the final rest stop for Europeans heading to the New World.

An icon of International Style architecture on the outskirts of Rotterdam.