For some time now, street art, and particularly Italian street art, has become much more than what it originally was, when to define this universe made up of spontaneous and rebellious gestures we used words that have gradually become marginal such as tag and graffiti. Today, when we say street art, we are referring to a multiform and frayed galaxy of expressions born from the same root of the gesture 'against' and then becoming much more. Talking about street art now means thinking of open-air museums such as the one in Tor Marancia in Rome, or exhibitions such as the one at the Macro museum in the capital, which in 2017 marked the entry into the official arena of artists born to dislike with their antagonistic creative actions. A long and complex evolution of languages, styles and poetics characterises what is now a veritable open-air museum, spread throughout the territory, from large cities to small towns, where urban artists increasingly leave their mark in dialogue with institutions, using their art as a cultural and social lever, an activator of processes of requalification and redemption.