In this paper, we propose to consider how Giordano Bruno's thought of infinity challenges the Renaissance or baroque concept of the theatrum mundi. The universe can not be a theatre. Yet, the theatre dispositive keeps coming back in the philosopher's work, but as a redefined theater, constantly problematizing its limits and the spectatorship. And then, in Il Candelaio, Bruno seems to us to define what would be a theatre of vicissitudes, in a kind of landscape theatre, which resonates with certain contemporary experiments.