On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

This hermitage spanning an Italian river gorge draws pilgrims hoping to heal ailments like arthritis and migraines.

The ruins of a thousand-year-old hermitage are tucked away deep in the sloping forests of Albano Lake.

During World War II, the Shroud of Turin was secreted to this remote southern Italian complex.

The sacristy of this church contains remains and relics of members of the Aragonese royal family.

This small hermitage is located along an ancient route that connected the Tiber and Rieti valleys.

This iconic rock hermitage was once the abode of a future pope.

The ruins of a rural church and a statue of Archangel Gabriel are tucked away in Majella National Park.

A network of underground water channels that dates back to the Middle Ages.

Since the 1960s, this small village has invited painters to decorate its walls.

This Roman theater was crafted into the local tuff rock and was rediscovered during the 19th-century.

An enormous sinkhole that local lore attributes to the anger of the Virgin Mary.

A special area of the National Archaeological Museum of Naples is located inside a metro station.

Unscathed for almost 2,000 years, the best preserved Roman triumphal arch is in a small southern Italian city.

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

The ruins of this once gorgeous medieval church are still standing, despite the region's constant flooding.

These caves are home to a small church and were used to age cheese.

A mountain cave is the site of archaeological findings and Paleolithic rock art.

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

One of Rome's most picturesque and original bridges was also a popular choice for Grand Tour artists.

This uniquely designed bridge served as the city gate for Comacchio.

The origins of a large, medieval castle are shrouded in mystery, but now it's a delightful garden.

Meet the oldest inhabitants of this Italian hamlet, a series of oddly preserved mummies.