Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

This Luxembourg cave is covered in cryptic looking marks left by mining activity.

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

This tri-part waterfall is a little bit of fairytale beauty in the heart of Luxembourg's Little Switzerland.

This noble mash-up in eastern Luxembourg is part Medieval, part Renaissance, all castle.

Once the local rulers had gone these enchanting ruins housed common folk in an almost real life fairy tale.

Brussels' favorite peeing boy has a sister.

A little sculpture with a large wardrobe.

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

One of the deepest indoor swimming pools in the world.

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

Christ's blood preserved in a Belgian town.

A maze of crosses marks the jumbled divide between the Netherlands and Belgium.

A miniature city, once ruled by the Queen of the Netherlands.

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

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

Colorful and chaotic stacked hotel in North Holland.

A Dutch clog company in the town of Zaandam loves the wooden shoes so much it made a museum for them.

The largest flower auction house in the world.

A grassy pyramid named after a French battle.

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

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

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

The ruins of this Dutch castle sit atop a labyrinth of once-secret tunnels and passageways, dating back over 900 years.