A magical and peaceful ruined Cistercian abbey in what is now southern Belgium.

Peek through a transparent pyramid and drink in the mountain made of books.

One of the deepest indoor swimming pools in the world.

The Devil’s own choice when he needs a drink in Brussels.

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

Lavish royal estate punctuated with heated greenhouses.

Birthplace of the "Cat in the Cradle" and a cluster of iconic, original windmills that let the Dutch tame the seas.

Descend into the tunnels to experience the life of a coal miner.

A centuries-old complex of hand-dug stone chambers has sheltered locals in times of trouble.

A 550-square-meter micro-nation off the coast of Britain.

There are two dozen tanks just sitting in an open field in Lower Saxony.

Live out your childhood construction fantasies in this one-of-a-kind gyrating hotel.

In an area where the remnants of WWI are discovered on a regular basis this preserved frontline trench may be the most amazing.

This Belgian theme park began as a refuge for bored church children and was closed down when a boy lost an arm.

A Netherlands hotel where you can sleep inside a wine barrel.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

Repurposed space and ultra-modern construction collide to create this geometric wooden spectacle.

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

The vast chamber inside this abandoned cooling tower looks like something out of a sci-fi dystopia.

Colorful and chaotic stacked hotel in North Holland.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

The world's only museum devoted to the wonders of fluorescence.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

This historic Amsterdam bar used to accept sailor's monkeys as payment.