Walk through a fairytale in Tuscany.

Romans built the world's tallest artificial waterfall in 271 BC.

One of the largest caves in the world open to the public.

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

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

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

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

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

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

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.

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

A fairy tale castle in modern Rome.

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

Geothermal waterfalls in Tuscany.

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

This amazing medieval fortress stands atop a promontory along the famous Cinque Terre.

A monk spent 14 years carving steps through tuff to make this religious site more accessible to pilgrims.

This network of roads is one of the most unique Etruscan creations ever discovered.

This statue of the legendary Austrian composer is hidden in the center of an Italian town.

The ruins of a medieval village that was abandoned after a 19th-century inferno.

A mountain cave is the site of archaeological findings and Paleolithic rock art.

This mysterious ancient arch is hidden in the forest of Simbruini Mountains Regional Park.

This 2,000-year-old Doric bridge is still open to pedestrian traffic to this day.