This concrete ship has had four careers - World War I tanker, floating amusement park, fishing pier, and artificial reef.

The relics of one of Jesus' 12 apostles are enshrined in this Italian Basilica.

A small Byzantine church lost in the middle of the mountains of southern Italy.

A study of Fascist era Art Deco design in Italy.

This Italian ski resort rose to fame when Benito Mussolini was held prisoner there and then rescued by the SS.

A fascist-era rural village abandoned since the early 1980s.

Once known for its horse-powered knife sharpening, this 200-year-old shop offers an array of blades and hard-to-find culinary tools.

For centuries, this large Roman villa remained hidden thanks to the eruption that buried nearby Pompeii and Herculaneum.

These pools have been abandoned for over 20 years.

The former home of an Italian artist is now a shrine to his ambitious works.

A climbing route in the mountains of Italy’s Dolomites, built for soldiers during World War I.

A dilapidated psychiatric facility on the outskirts of Milan where electroconvulsive therapy was developed and Napoleon once lived.

The world's oldest surviving anatomical theater, where "the dead are pleased to help the living."

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

Rome's ancient Etruscan rival, now a park full of ruins.

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

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

Pilgrimage site for star-crossed lovers.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.