One of the world's oldest working clocks is curiously missing the Zodiac sign of Libra.

The first Russian Orthodox church in the Catholic city of Rome in almost a thousand years.

Crumbling ruins of the thermal baths that once attracted royals and aristocrats from throughout Europe.

An extensive collection of reliquaries containing the bones of saints housed in the largest Catholic church in Venice.

A madman's personal garden filled with 1,000 sculpted heads.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

A fairytale-like medieval church perched atop a rocky cliff on Italy's "Coast of the Gods."

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

St. Francesca Romana, patron saint of drivers, resides in the church she founded.

The mummified relic of St. Catherine sits forever on a golden throne.

Deceased nuns were placed on stone chairs to decompose, while the surviving nuns prayed near the lifeless bodies.

A stunning bridge that appears as if it's lunging to the shore, and has a legend of a devilish architect.

This precariously perched fortress was once ruled by a crow-worshipping baron.

A sulfuric hellscape in southern Italy.

The mystic whose incorrupt corpse still attracts the faithful.

Burke’s oldest cemetery also houses the victim of the county's grisliest murder.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

Eighteen mummies have stood guard behind the altar of this tiny church since 1833.

This abandoned island off the Venetian coast has been a radical monastery, a political prison, and a secret Nazi base.

The mummified relic of St. Antoninus.

Europe’s oldest natural human mummy.

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

Medieval torture techniques with a modern conscience.

An ancient artistic garden parlor full of hidden water wonders.