Elaborate tile work in this railway station tells the story of Portugal.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

The legendary building that needed ghostly approval before being built.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

An ancient ossuary in Rouen.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

This medieval tower is all that remains of the castle where Joan of Arc was held before being burned at the stake.

A Nesting Doll of Churches.

The underground sanctuary of a mysterious ancient cult.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

An ancient city hidden in the heart of the Sierra Nevada mountains.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.