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

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

An industrial relic is now one of Europe's most staggering art spaces.

This former steel and coal plant is now a neon-lit industrial fantasia.

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.