The space-age building is home to one of the few remaining rotating restaurants in America, and the only one that inspired a 1980s sitcom.

This real life asylum of horrors is now an abandoned ruin that hides the unbreakable code to one patient's insanity.

A fairytale island floats in the middle of Italy's little-known Lake Orta.

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

An Italian hillside ghost town.

A sunken idol welcomes parishioners to Davy Jones' Locker.

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

Crushed coral and crystals give the sand its signature coloration.

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

A hospital where antique dolls are given new life.

Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

David Sedaris called it "The greatest shop in the world."

Skulls from the plague of 1656 and World War II bombings are united by a cult dedicated to caring for the ancient dead.

A labyrinth of ancient tunnels hidden below the city holds the ruins of 2,500 years of history.

This enchanting 600-year-old tree is so magical it inspired the beloved tale of Pinocchio.

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

Five candy-colored villages on the Italian Riviera.

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

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

The glowing blue Nymphaeum of Emperor Tiberius.

As can be expected from a centuries old church built in a canal city, the undercroft of this house of worship is beautifully flooded.

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

The oldest operating pharmacy in the world features 800-year-old recipes.

Thousands of well-dressed mummies below a monastery.