What happens when you cross a mayor and a painter?

Hundreds of thousands of concrete bunkers crowd Albania long after the fall of Communism.

Breathtaking and huge 430 year old maps of Italy.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

A mysterious chasm in the heart of the ancient Roman Forum, the Lacus Curtius was once believed to be a gateway to hell.

Turntable anonymously received orphans, alms, and groceries.

Commonly acknowledged as the only public monument to the Devil himself.

An ancient Egyptian temple in the middle of Madrid, Spain.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Museum of science fiction, utopias, and extraordinary journeys of the mind.

Over 3km of caverns and caves at the Switzerland-France border contain the largest underground river in Central Europe.

Swiss vineyards in a UNESCO heritage site.

The university library shaped like a giant piece of Swiss cheese.