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

A Nesting Doll of Churches.

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

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

At the crypt of St. Mary of Eulogies and the Dead you are left alone to ponder mortality among piles of skulls.

The underground sanctuary of a mysterious ancient cult.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

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

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

Architectureal fantasy quarter of Rome.

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

A grotesque collection of wax limbs depicting the symptoms of venereal disease.

The rocky remains of an ancient Greek forest.

An ambiguous ambience emanates from this centuries old leprosy quarantine.

This medieval "painted village" is famous for its geometric facades.

A little-known park with unusual, half-ruined structures and a mystical energy.

This field of half-buried stone crosses was the burial place of a sect of heretical gnostics.

The oldest cemetery of modern-day Athens blends the modern and ancient worlds.

This remarkable cave was discovered after a shepherd watched bees enter and exit through a small fissure.

An ancient octagonal weather station named for the eight Greek gods of wind.

According to myth, Zeus himself was hidden in this cave to escape being eaten by his dad.

Giant marble phalluses on the sacred island of antiquity.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

This legendary city has been a tourist attraction for centuries.