Take a walk in a recreation of ancient Rome.

These tenacious 14th-century towers defied demolition and are now a fairytale vacation rental.

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

No need to strap in for a “ride” on this walkable roller coaster.

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

The world's biggest pet store.

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

It houses the remains of a 17th-century version of the Titanic.