The fairy tale castle of the "fairy-tale king."

The former home of France's controversial pop maestro is almost completely covered in ever-changing tributes and graffiti.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

This small, ingenious cannon once helped regulate Parisian life.

The world's longest known cave system.

A local scoured more than 1,000 acres for stone to create his masterpiece.