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

Medieval town turned hippie commune, once home to the secret foreskin of Jesus Christ.

This medieval Italian town is a sheer (and beautiful) cliffside defense.

Eco-village hidden in the foothills of the Alps that created a massive system of psychedelic underground temples.

The Pope’s secret escape route.

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

A Nesting Doll of Churches.

A hospital where antique dolls are given new life.

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

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

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

Crushed coral and crystals give the sand its signature coloration.

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

Abandoned medieval hill town.

This domed temple was built in a hidden cave mouth as a refuge for sinners seeking absolution.

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

This beautiful park on the outskirts of Rome protects the ruins of two colossal ancient aqueducts.

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

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

This 16th-century monastery has been turned into a surrealist architecture compound.

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

Five candy-colored villages on the Italian Riviera.

A fairy tale castle in modern Rome.

An Italian hillside ghost town.