The talk addresses the potential of temporary (“ephemeral”) architecture today, examined through the work of the five teams invited for the Rome exhibition and the Seoul Biennale. The related topics treated here are many: temporary architecture in the context of temporary urbanism, the relation between art and architecture, the relation between art/architecture and society, and the relation between art and architecture institutions and communities. The talk will wind up with a “pop-up” consisting of two components: a slide show documenting the whole process, from Rome to Seoul, and the five books designed by the teams and shown at the Seoul Biennale.