Reflections on the rapidly changing formulations of public space in the age of digital media, vast ecological crises, and civic uprisings. "Public space" is a potent and contentious topic among artists, architects, and cultural producers. Public Space? Lost and Found considers the role of aesthetic practices within the construction, identification, and critique of shared territories, and how artists or architects-the "antennae of the race"-can heighten our awareness of rapidly changing formulations of public space in the age of digital media, vast ecological crises, and civic uprisings. Public Space? Lost and Found combines significant recent projects in art and architecture with writings by historians and theorists. Contributors investigate strategies for responding to underrepresented communities and areas of conflict through the work of Marjetica Potrc in Johannesburg and Teddy Cruz on the Mexico-U.S. border, among others.