This massive blockhead sculpture hides an entire library.

The construction of a tram line unveiled hidden remnants of the old medieval city.

An old quarry transformed into a recreational and cultural space.

These Stolpersteine located in Spain honor Republican soldiers who perished at the hands of Nazis after the fall of France.

This remarkable prehistoric town is full of watchtowers and houses that have withstood thousands of years.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

These sea caves are the source of Xigia Beach's distinct aroma.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

Flying high over the small island of Zákynthos is a giant tribute to the mainland.

Bell tower juts out from a village buried under a lake.

Europe’s oldest natural human mummy.

An open-air museum in a mountain valley features works designed to blend in with—and disintegrate back into—their natural surroundings.