No building is an island – and in the context of the city, architecture takes shape in relation to the street. Organized by the PhD program in Architecture, Landscape Architecture and Urban Planning, this year’s Cambridge Talks symposium considers the street as a liminal zone, where architectural form and symbolism meet with the contingencies of urban life. How do streets’ infrastructural functions as circulation (of people, goods, and resources) press against the static character of architecture? How do streets serve as the spatial framework for social control, ceremony, and protest? How do streets operate as sites of cultural memory and nostalgia? And, above all, what are the effects of such social, political, and technological forces on architectural form?