C215, otherwise known as French street artist Christian Guémy, is one of the most influential figures on the international street-art scene, with urban installations decorating the walls of cities around the world and unmistakable technique and aesthetic. For his exhibition “Mea Culpa” at Wunderkammern in Rome (March – May 2013), Guémy created several mural interventions near the gallery in the Torpignattara neighbourhood and in the Ostiense area.