This ancient altar emerges from the thick forests to reveal the mysteries of Etruscan sacrificial rituals.

Nestled in the heart of Milan is a real wunderkammer of morbid curiosities.

This former fascist summer camp was abandoned for decades.

The top of society once luxuriated in this world-class hotel, which continues to impress, even in ruin.

Crumbling ruins of the thermal baths that once attracted royals and aristocrats from throughout Europe.

A Milanese café entirely designed by the American director Wes Anderson.

A once-luxurious, now abandoned hotel in the Italian Alps.

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

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

This half-finished "city of toys" was almost Italy's own Las Vegas.

Walk through a fairytale in Tuscany.

The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

The plague quarantine island home to the alleged "Vampire of Venice."

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

This immaculate and historic water garden culminates in a massive stone dining table with an inset fountain for chilling the wine of the Cardinal's guests.

This quaint Italian town keeps losing ground as the sides of its plateau slowly erode.

A fairy tale castle in modern Rome.

Abandoned medieval hill town.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

Ruins of a 10th century church tucked away deep in a botanical garden.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

The largest and most famous wax anatomical collection anywhere in the world.

An Italian hillside ghost town.

A small island less than half a mile from Venice is a forbidden island with a dark and twisted past.