Filled with goldfish swimming in a shallow pool of sea water, this ancient crypt is more wishing well than burial site.

Natural cathedral designed by Italian artist Giuliano Mauri.

This Roman arch marks the location of an ancient gate at one of the Seven Hills of Rome.

The location of the last witch trials of Italy, known as "The Salem of Europe."

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

Abandoned medieval hill town.

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

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

Pilgrimage site for star-crossed lovers.

A hospital where antique dolls are given new life.

This sword isn't waiting for a king to pull it out. It was placed there by a saint.

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

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

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

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

A Nesting Doll of Churches.

Drink wine handed out through a window as part of an age-old tradition.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

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

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

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

Crushed coral and crystals give the sand its signature coloration.

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

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