An Italian vineyard invites religious pilgrims to stop by 24/7 to get their drink on, for free.

Built to repay the sins of the father, this church is home to one of the most valuable works of Western art.

A unique form of erosion created an uncanny landscape of boulders perched atop slender columns of clay.

A medieval fountain lined with 99 unique stone faces whose origins and meaning remain unknown.

One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

Vast network of air raid tunnels beneath Lombardy's capital.

Over 100 towers were built in Bologna during the Middle Ages, but only 22 survive.

A spiritual sanctuary in a natural cave.

Stumbling upon this whimsical wooded garden is like stepping into an enchanted forest full of philosophical musings.

The odd depiction of the Virgin Mary and baby Jesus is rooted in the Catholic Church's eradication of Catharism.

Nestled in the heart of Milan is a real wunderkammer of morbid curiosities.

Water and windows define this defensive Italian well.

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

Before there were doorbells this bronze ear was installed for visitors to announce their arrival.

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

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

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

These delicate sand pyramids look like naturally occurring gothic spires.

A domed disco abandoned since the '70s now attracts artists and explorers under its unique roof.

One of the four sanctuaries of Rieti's Holy Valley was the site of the first living nativity scene.

A rococo room covered entirely in porcelain originally constructed for another royal residence.

These pillars at the main entrance of this church are actually a hidden musical instrument.

This scenic fortress dates back at least 2,400 years to the time of Magna Graecia.

When occupying Nazi troops detonated a mine below, medieval frescoes were revealed in this small cliff-side hermitage.