A new sculpture calls attention to climate change in the centuries-old city it threatens.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

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

The location of the last witch trials of Italy, known as "The Salem of Europe."

A sunken idol welcomes parishioners to Davy Jones' Locker.

The doodles of a genius line the walls of a secret room under the Medici Chapel, where they were hidden for nearly 500 years.

A complex, nine-layer maze on the grounds of a Venetian doge's playground.

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

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

Pilgrimage site for star-crossed lovers.

Go inside to really appreciate this 500-year-old technological masterpiece.

The final resting place of the poets Shelley and Keats.

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.

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

Hidden beneath the famous St. Peter's Basilica is a veritable city of the dead that may hold the remains of St. Peter himself.

Natural cathedral designed by Italian artist Giuliano Mauri.

2300-year-old Roman road connecting the empire.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

An Italian hillside ghost town.

Sitting on an Italian hilltop is this surreal fortress built by the mad inventor of electrohomeopathy.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.