Canada's fringe festivals are important interventions in the discourses and institutions framing Canadian theatre, leading some to recognize them as sites of a radical cultural politics. Most commentators have placed their attention on performance at these events, but in this paper, the focus is on the manner in which these events reorganize urban spaces into festival spaces, constructing informal discursive arenas within which the interaction of patrons, artists, and organizers is encouraged, and which situates performance, display, and the negotiation of social identities within an intersubjective field less influenced by certain constraints in traditional theatre. What is often overlooked, however, is that these discursive arenas are constructed within, at the same time as they engage, the social and spatial organization of the city, and are therefore marked by certain exclusions and inclusions. By refusing to abstract these festivals, as ‘artistic events’, attention can be paid to their ‘topography’, to explore the relations between cultural practice, social identity, and the organization of the city.