One of seven Jewish catacombs in Rome and one of only two open to the public.

Venice's island of the dead.

Walk through a fairytale in Tuscany.

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

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

The famous sculptor left his mark on this Italian wall in an internationally protected example of street art.

Virgil's many-mouthed gateway to the underworld.

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

This Italian foot path winds through the mountains via 52 individual tunnels.

A Nesting Doll of Churches.

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

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

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

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

Giant, pink stuffed rabbit on an Italian mountain.

Pilgrimage site for star-crossed lovers.

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

These "anatomical machines" are only one of the many strange items in this Italian crypt.

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

A collection of objects supposedly singed by the hands of souls in purgatory.

Abandoned medieval hill town.

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

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

An Italian hillside ghost town.