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

Rome's semi-secret peephole vista is also a former Crusader stronghold.

A Nesting Doll of Churches.

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

A forgotten "city of water" underneath the famous Trevi district.

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

According to local folklore, this Roman sepulcher was once a throne for the Devil.

A burial vault located under Tiber Island in the middle of the Italian capital.

The mystic whose incorrupt corpse still attracts the faithful.

Brass cobblestones mark the places where individual Holocaust victims were taken from their homes.

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

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

In Rome’s Jewish ghetto, a 200-year-old bakery still makes the neighborhood’s historic sweets.

The skull of the patron saint of lovers lies in the Basilica di Santa Maria in Cosmedin—maybe.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

A former Roman town that was once the home of Scipio Africanus.

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

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

This medieval city gate is now a blend of the past and the modern world.

This monumental fountain has moved around the city multiple times.

A rococo room covered entirely in porcelain originally constructed for another royal residence.

This Neapolitan exhibition hall grants weird and wonderful insight into the intricacies of human biology.

An unusual "skull with ears" sits in the crypt of this small church tucked away at the end of a narrow alley.