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

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

Richard Luke Concanen never set foot on American soil.

The sacristy of this church contains remains and relics of members of the Aragonese royal family.

A special area of the National Archaeological Museum of Naples is located inside a metro station.

A long-buried ancient ruin unearthed right in the middle of the city.

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

Suffocating dogs was a common spectacle in the fumes of this noxious cave.

This monumental fountain has moved around the city multiple times.

A surreal botanical garden with an even more surreal tour guide.

A dead saint, a deadly poison, and a mysterious holy ooze.

The relics of dozens of martyrs are stored in a single chapel.

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.

An eerie, little-known Neapolitan museum filled with preserved human remains.

An eccentric artist's abode in this small Italian town has been transformed into a surreal temple of mosaic madness.

The burial place of an obscure North African saint was turned into a macabre body preservation factory for the 17th-century Neapolitan elite.

The Neapolitan Cult of the Dead still cares for the skulls at this mini-Fontanelle.

Every day is like Christmas on this street where the traditional Neapolitan nativity scene comes to life.

An underground paleo-Christian burial site composed of the remains of several cemeteries and Basilicas.

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

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.