The oldest stone house in Paris was built by its most famous alchemist.

No matter how many times this community-run sauna gets destroyed, it always rises from the ashes.

This little museum is making sure that the art and history of the graffiti sticker is not scraped from history.

It's always summer at the beach inside this former airship hangar.

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

This cheese shop also houses a museum devoted to Dutch dairy.

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

This basement museum explores the art and artistry of fascism.

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

Sail in for a ’dam good slice.

This museum inside Amsterdam's largest cemetery explores how people deal with death.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

These blingy, baubled skeletons lie in glass boxes inside a baroque Bavarian church.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

The world's most active stratovolcano is almost always erupting.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.

Thousands of well-dressed mummies below a monastery.

This medieval cathedral houses stained-glass windows featuring saints and pretzels.

A historic observatory now an astronomy museum beautifully situated at the moat of the Middle Age city centre.

This functional solar system model was inspired by the famous Eisinga Planetarium.

Rotterdammers' dirty minds gave this santa a dirty nickname and cursed it to a life of wandering.

These slanted cubic abodes are a creative if odd solution to a zoning pickle.