WWII rocket launchpad in rural Germany and site of operation backfire.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

This old KLM airplane cut into three parts was transformed into an eclectic airport gift shop.

It appears as if a man is standing behind this giant airport clock, painting the hands in real time.

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

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

This medieval castle was painted pink as part of a now-abandoned children's theme park.

A little sculpture with a large wardrobe.

A man throwing a giant severed hand towers over Antwerp’s main square.

This small corner bar is home to a rare 1930s dance organ that still plays tunes for one Euro.

A beer pipeline runs beneath Bruges.

The highest point in Belgium is a staircase to nowhere.

Hiding the longest subterranean river known in the world.

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

A beautiful maze marks where three countries meet.

Visit the ancient, mysterious Roman catacombs ... in the Netherlands.

Incredible labyrinth of man made caves.

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

Walk through the history of a Dutch truck manufacturer, from 1928 to today.

Two gravestones clasp hands over the religious divide.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

An underground city of salt.