1 Best Sight in Piedmont and Valle d'Aosta, Italy

Forte di Gavi

Fodor's choice

The origins of this imposing military fortress perched on a rocky hilltop above Gavi are rather murky, but it’s thought to have first been built atop the ruins of a 10th-century castle before being enlarged between the 16th and 18th centuries. The fortress was used as a military prison during both world wars, and today you can take a 45-minute tour to learn about its history as well as tour the courtyards, guards’ towers, and other rooms; call or email  [email protected] at least one day in advance for a reservation—and also to check opening times, as they can be erratic. Even if you don't see the inside of the fort, the area around it offers stunning views of the town of Gavi and the Alto Monferrato hills below.