An impressive bridge over a ravine also served as an aqueduct.

The construction of a new church near Venosa was started in the 11th century, but never finished.

Ride a boat through this magnificent underground world, which now doubles as a theater.

This ancient city was home to one of the greatest schools of Greek philosophy.

This medieval hilltop village was abandoned at the end of the 19th century, after existing for more than 500 years.

An abandoned quarry hides an open-air gallery of huge sculptures, some made from the rubble of 9/11.

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

Skulls and skeletons are omnipresent in this church dedicated to souls trapped in purgatory.

The sunlight passing through the opening of this huge cave system creates a magical effect.

The oldest scientifically dated tree in Europe lives on a remote cliff.

Constructed during the 1960s, this bridge is still the highest in Italy.

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

The tallest statue in Italy is also one of the world's tallest statues of Jesus.

This high-speed test track is popular with car manufacturers, speed freaks and orbiting astronauts.

It's believed that these columns marked the end of the Via Appia.

A single column facing the sea is all that's left of one of the most important temples of Magna Graecia.

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

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

This church carved into the rocks is full of enchanting stone statues.

A small Byzantine church lost in the middle of the mountains of southern Italy.

Two of the few remaining life-sized Greek bronzes were submerged in the sea for over 2,000 years.

2300-year-old Roman road connecting the empire.

The yawning maw of this pagan visage is said to bite off the hands of liars.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.