This abandoned Slovenian military barracks has become a punky-political art squat.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

Residential building on the Regents Canal is a breeding ground for creativity and innovation.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

France's most famous cemetery, with some of its most curious tombs.

Paris' linguistic guide to the international language of, yes, love.

Hear the quietest sound from across the dome.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

Ship-sized kinetic sculptural fantasy.

Scattered throughout London are ancient remnants of the city's former bounding wall.

Abstract dinosaur models in London.

The remains of Crystal Palace Great Exhibition of 1851.

A whimsical bridge adorned with decorative dragons.

This one-time health resort was used by aristocrats around the world.

The "dragon babies" of southeastern Europe.

A miniature train-ride through Slovenia's largest cave system.

This one has sailed five times as far as Sir Francis Drake's famous ship.

London's smallest police station is barely the size of a phone booth.

Catacombs turned marketplace.