In a tower at this centuries-old castle, members of a noble family were imprisoned and left to starve.

During World War II, a number of important sculptures and paintings were moved to this castle for safekeeping.

A medieval tower with a suspended iron cage used as an open-air jail for criminals who were exposed as a warning.

This Renaissance square was at the center of Leonardo da Vinci's map, the first ichnographic ever.

This beautiful Romanesque church preserves stunning medieval frescoes and the excavations of a Roman market town.

Knights Templar are visible inside this stunning Cistercian abbey.

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

This medieval castle was reconstructed by Carlo Scarpa.

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

This castle was once the home of one of the most powerful women of the Renaissance.

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

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

This Roman amphitheatre was also the location of the first gladiator school.

Ever loyal to Roma, the small village of Albe in the Abruzzo region carried on until an earthquake did it in.

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

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

A replica memorializes the site where women were punished after the last witchcraft trial in Ireland.

A Victorian marvel of engineering is now a 21st-century tourist attraction.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

Northern Ireland's Brobdingnagian stepping stones.

This Neolithic passage tomb forms part of a World Heritage Site.

This 5,300-year-old tomb with mysterious carvings crowns an Irish mountain.

Ruins battered by centuries of war and disaster offer a wondrous glimpse of medieval Ireland.

These imposing walls and towers look more like the ruins of a fortress than a monastery.