A landmark in the history of technology and computing is hidden in a tiny Baroque chapel.

This Torino museum honors a soldier who kept the city safe using barrels of exploding gunpowder, losing his life in the process.

The Cathedral of St. Ambrose has been hiding a special parishioner within its walls.

This building was designed to celebrate Italy's victory in World War I.

This Italian pyramid is said to hold the mingled remains of the dead from both sides of the Battle of Novara.

A formerly opulent Italian village is now a crumbling ghost town that no one really knows what to do with.

The mountaintop inspiration for Umberto Eco's "The Name of the Rose."

A mysterious stele of unknown origin sits on the peak of this curious mountain.

An extraordinary house museum and cabinet of curiosities in the heart of Florence.

The Roman Emperor's lost summer home and grotto full of enormous sculptures sit along the Italian seashore.

For centuries, this large Roman villa remained hidden thanks to the eruption that buried nearby Pompeii and Herculaneum.

A complex, nine-layer maze on the grounds of a Venetian doge's playground.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

This amazingly well-preserved villa just outside Pompeii boasts rare examples of ancient Roman paintings.

A collection of grotesques lines the walls of this Italian villa.

A beautifully well-preserved ancient Roman villa.

The first botanical garden, a feather in the cap of the Grand Duke of Tuscany.

The best preserved Paleochristian basilica in Rome hides a number of oddities and secrets.

A huge enchanting public park just outside the ancient walls of Rome.

This hydrochronometer was invented by a Dominican monk and is a prime feature in this garden.

Renaissance villa and gardens complete with a tormented colossus.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

A lavish 16th-century mansion filled with spectacular staircases, fantastic frescoes, and gorgeous gardens.

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