The site of Austria's biggest concentration camp now honors its victims.

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

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Remains of the artificial harbours invented for the Allied invasion of Normandy can still be seen at sea.

A memorial to the nearly 10,000 American soldiers laid to rest on the beaches of Normandy during WWII.

This small Spanish village still pays homage to the Spaghetti Western films that were shot there in the 1960s.

The blowhole bursts spectacularly right next to the buildings in a medieval seaside town.

French commune at the heart of conspiracies.

The way that light hits a stained glass window on a specific day is one of many "clues" to a mysterious treasure.

Historic medieval fortified city in southwest France.

The world's largest solar furnace uses 10,000 mirrors to concentrate the sun's rays to generate power.

Village situated on a narrow volcanic escarpment.

Wonderland replication in progress by one persistent man.

Giant eggs, walls of bread, and nightmare surreality mark the largest collection of works by Salvador Dalí.

A Romanesque tower appears when water levels drop.

Religious dwelling in a Spanish volcano.

A darkly erotic open-air statuary in Catalonia.

Of course Salvador Dalí lived in a castle...

These fly sculptures are scattered around the city and represent the patron saint of Girona.