Copenhagen's celebrated theme park and gardens.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

Danish observation tower designed to look like a giant beer bottle.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

Old Danish castle immortalized in Shakespeare's Hamlet.

Preserved "bog person" that is over 2,000 years old.

Once the home of a hermetic monk, this cave now houses a small church.

Museum dedicated to the terror regimes of Hungary.

A museum dedicated to a secret military hospital hidden beneath a castle in Budapest.

1513 Turkish world map, full of European state secrets and snarky commentary.

A marvel of Byzantine engineering under the streets of Istanbul.

Mysterious lost empire of the Silk Road.

Ruins of the Crusaders' headquarters.

A 1,500-year-old ghost settlement is slowly fading away.