Colorful and chaotic stacked hotel in North Holland.

A dramatic art installation features a BMW flying out of a building in Rotterdam.

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

Brussels' favorite peeing boy has a sister.

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

The tallest church in Mechelen might have been the tallest in the world if not for a lack of funds.

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

This gruesome biblical parade celebrates the one day a year that a bit of Jesus' blood turns to liquid.

A little sculpture with a large wardrobe.

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

The world's largest bicycle shelter can hold more than 12,500 two-wheelers.

The legendary giant's severed hand sits on Antwerp's popular shopping street.

Stockholm's deepest subway station is also a stunning ecological wonder.

The world's largest model of our planetary system.

Sweden's oldest animated sign is still lighting up the skyline today.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

Atop this former dutch railway office sits an interstellar work of art.

This imposing tower named after the mythical sword of King Arthur is considered the tallest freestanding climbing wall in the world.

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

Bridge that died in war and was resurected.

This renaissance château was home to an infamous witch hunter who sent a hundred suspected witches to their deaths.

A church of bones, decorated with 40,000 human skeletons.

Op-art architecture designed for happiness.