A 16th-century horror show built in a lovely Italian garden.

Ancient, mysterious stone altars are hidden among wild woods in central Italy.

For centuries, this town's hot springs have been embraced by rich and poor—and even by Popes.

This ancient trail climbs the mountain where a Latin League cult worshipped Jupiter, its main deity.

The remains of a town so thoroughly destroyed by French forces that the citizens simply left.

This caldera was once associated with the Etruscan god of the underworld.

Nine caves filled with recently-discovered archaeological finds under the houses and the streets of the most ancient district of an old town.

Water and windows define this defensive Italian well.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

A dreamlike medieval church dug into the tuff rock, with unusual carvings and possible traces of the Templar knights.

Gigantic mosaic sculptures of the figures on Tarot cards fill this colorful Tuscan garden.

A magnificent Neogothic tomb hides within this Italian fairytale-like forest.

This network of roads is one of the most unique Etruscan creations ever discovered.

Geothermal waterfalls in Tuscany.

Nestled in the hills of Tuscany are gorgeous, multicolored hot springs.

This medieval mountain town is also known as the "Village of Streams."

Romans built the world's tallest artificial waterfall in 271 BC.

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

The marshy karst plain has reclaimed this beautiful 17th-century church.

This lake was sacred to the Sabine people who constructed a temple here on a floating island.

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

This enormous sinkhole hides a secret world created from divine wrath.

This seventh-century fortification marked the western border of the Lombard duchy of Spoleto.

The ruins of an abbey believed to have been founded by Charlemagne in the 9th century.