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

San Gennaro, the patron saint of Naples, greets pedestrians between these narrow city streets.

Millions of years of erosion created the feature for which this rock formation is aptly named.

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

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

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

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

This tiny islet has somehow housed an ancient temple, two monasteries, a church, a fortress, and a restaurant.

Before it was buried by volcanic ash, this fast-food restaurant fed the hungry hordes of ancient Rome.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

The walls and streets of the ancient city are peppered with penises.

Erotic art covers the walls of the largest ancient pleasure palace.

Ancient snack bar of the Roman Empire re-opened.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

This 17th-century passageway is home to numerous bookshops, a witch legend, and the oldest pizzeria in the world.

The remains of the left arm of the levitating philosopher-saint are kept in a 13th-century Neapolitan basilica.

A popular legend claims that the famous pizza was invented at a restaurant in this alley.

Dug as a secret royal escape route, the tunnel became a wartime bomb shelter and dumping ground for vintage cars.

The sign at the garden gate reads: "These Plants Can Kill."

Eighty million natural history specimens call this gargantuan museum home.

This amazing 15th-century mural remained hidden in plain sight for centuries.

Every hour on the hour a naked heroine and her leering foil appear from this giant cuckoo clock.

A great example of the inventive canal bridges that were deliberately split down the middle.