$MASKS

Why is Venice famous for masks?
… in the past the streets of Venice were full of the people wearing masks which allowed them to protect their identity and remove any social differences
The masks are the symbol of freedom and transgression, they level social categories and add charm and mystery to the wearer.

In which city in Italy are masks famous?

Venice, Italy
The Carnival of Venice (Italian: Carnevale di Venezia; Venetian: Carneval de Venèsia) is an annual festival held in Venice, Italy, famous throughout the world for its elaborate costumes and masks.