These 12th-century catacombs carved into a mountainside were a place of mysticism and Christian hermitages.

Amidst medieval and baroque buildings, five human-sized gherkins stand tall.

A Wild West jailhouse that slid down the mountainside.

Go inside to really appreciate this 500-year-old technological masterpiece.

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

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

Renaissance villa and gardens complete with a tormented colossus.

Art and armour fill every inch of this rich kid's Italian villa.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

This bronze boar's snout has been rubbed to a golden sheen by visitors seeking good fortune.

2300-year-old Roman road connecting the empire.

Jesus' footprints and the first catacombs in the world.

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

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."