One of the greatest maze designer’s greatest mazes.

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

This overgrown mountain village has been abandoned for nearly a century.

Now an entertainment complex, the Lingotto building was once an avant-garde auto factory with a test track on the roof.

Memorials at a Florence railway station remember the citizens who were deported from Italy and sent to extermination camps.

The forbidden island of the Tuscan Archipelago may still contain buried treasure.

The bright red cars take travelers through breathtaking Tuscan scenery.

Vast network of air raid tunnels beneath Lombardy's capital.

A volcanic old faithful, Stromboli has been erupting continuously for the last 2000 years.

A sulfuric hellscape in southern Italy.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

This precariously perched fortress was once ruled by a crow-worshipping baron.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

The bomb-ravaged remains of of a colossal Neptune.

A star-shaped fortress town fort built in the geometric model of the Renaissance utopian city.

Two very green residential towers cleaning the air in one of Europe's most polluted cities.

Long-abandoned art nouveau baths beneath Milan's Piazza Oberdan.

The sinister ruins of one of the worst dam failures of the 20th century lie in this astonishing alpine setting.

The world's most active stratovolcano is almost always erupting.

An underground paleo-Christian burial site composed of the remains of several cemeteries and Basilicas.

An Italian ghost town that fought obscurity, until a mysterious illness brought it to its knees.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

Crossing this suspension bridge feels like walking through the sky, a fitting tribute to the head of the Apollo program.