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

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

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

A beautifully well-preserved ancient Roman villa.

Macabre symbols of death and mummies on display set the tone of this Italian purgatory church.

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

Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

The mountaintop inspiration for Umberto Eco's "The Name of the Rose."

Every inch of this chapel is covered in craftsmanship from across the world.

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

The Emperor Tiberius' palace of debauchery.

The mark of the Devil's horns on a marble column in Milan.

Hanging within this medieval church are the bones of a beast allegedly slain by a fourth-century saint.

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

Two stone columns flank the grand Venice square, but there were supposed to be three.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

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

A cave in southern Italy adorned with thousand-year-old Biblical frescoes existed in obscurity until fairly recently.

A 1,000-year-old church holds the bones of the Christian martyrs who died hiding inside it.

One man's quest to fix his toilet unearthed over 5,000 artifacts spanning more than 2,000 years of history.

Geometry and mystery come together in an epic show of octagonal masonry.

This magical-looking island is notorious for the misfortunes suffered by its owners.

Beautiful views and Roman-style statues on the Italian coast.

This mosaic-lined medieval church was built by the world's first admiral and still holds mass in ancient Greek.