Every Easter, a small Sicilian town builds a stunning cathedral out of bread.

A dilapidated psychiatric facility on the outskirts of Milan where electroconvulsive therapy was developed and Napoleon once lived.

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

On rare days, this abandoned castle's gatekeepers open its doors, revealing the eye-popping splendor hidden inside.

Ever hear of the Milazzo Cage?

The disputed geographic center, or "navel," of Italy.

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

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

A fairy-tale-like forest that was sacred to Jupiter and Saint Anthony.

This lesser-known leaning tower is all that remains of the medieval castle of Vernazzano.

In this nearly 1,000-year-old monastery, monks painstakingly restore old books.

This is the oldest Roman-made bridge in the city still existing in its original state.

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

Only the facade of this house was built so a father could fool his son.

What appears to be an ancient Roman temple is actually a Catholic church.

This Italian museum is a one-of-a-kind celebration of printing and type.

Roman politician Herodes Atticus built this nymphaeum to honor his wife, whom he may have murdered.

This clifftop arch is a natural stunner.

This deceiving white sand beach gets its brilliant hue from the chemical discharge of a nearby factory.

The 1940s structure houses what was once Europe's largest telescope.

This medieval castle was home to a known tyrant and features several hidden passages.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

Atop the former site of a historic bakery sit two stone tributes to Verona's contribution to traditional Italian baking.

The ruins of the largest gladiatorial school in Rome are largely hidden under modern streets.