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

An abandoned Roman salami factory has found new life as an art space home to 200 squatters.

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

A hospital where antique dolls are given new life.

This large, circular tomb is the final resting place of the first emperor of Rome.

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

A Nesting Doll of Churches.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

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

The Pope’s secret escape route.

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

One of the most important yet well-hidden museums dedicated to the history of medicine.

This shining multicolored metro station deep under Naples is said to be the most beautiful in Europe.

This former Roman Catholic Church still contains the embalmed hearts and organs of 22 popes.

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

Crushed coral and crystals give the sand its signature coloration.

One of several skulls claiming to belong to the beheaded St. John the Baptist is on display at this Roman church.

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

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

One of the world’s smallest bars, just 13 square feet, is brimming with speakeasy flair.

Hidden in an Italian forest is a completely homemade amusement park that has taken a lifetime to create.

An Italian hillside ghost town.

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

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