This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

South of Bologna, a limestone grotto with a protruding waterfall and a floor full of cave pearls.

Abandoned village in Sicily built during the agricultural reforms of Mussolini.

The now-abandoned Fascist summer colony served a dark purpose during World War II.

These pools have been abandoned for over 20 years.

Also known as the Temple of Poseidon, this is one of the best-preserved Greek temples in the world.

The titular "little arch" near this Italian resort is one of the most popular diving spots in the country.

Remnants of cone-shaped fascist bomb shelters in Milan.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

A visionary Italian architect created an impressive cluster of concrete structures for a family's private tomb.

A colossal aqueduct from the second century B.C., deeply hidden in a gorge on the outskirts of Rome.

Believed to be the remains of the lost Temple of Minerva, this nymphaeum has been known by its misnomer to this day.

This network of roads is one of the most unique Etruscan creations ever discovered.

This former fascist summer camp was abandoned for decades.

What looks like a link in Gondor's early warning system is actually a centuries-old Italian fortress.

Featuring the last fully walkable parapet walkway in Europe.

A semi-abandoned village destroyed by U.S. bombings during World War II dominates the valley of Turano.

On the shores of Lake Garda, the ruins of a Roman villa that allegedly belonged to the poet Catullus.

This tiny islet has somehow housed an ancient temple, two monasteries, a church, a fortress, and a restaurant.

One of Rome's most picturesque and original bridges was also a popular choice for Grand Tour artists.

This skeletal, unfinished Gothic church once housed a miraculous masterpiece by Raphael.

Windblown rock formations in an ancient Roman quarry.

This scenic fortress dates back at least 2,400 years to the time of Magna Graecia.

Buried next to Pompeii, this lesser-known Roman villa was the opulent vacation home of Emperor Nero's wife.