The symposium will bring together researchers, practitioners, and policy makers focused on health in cities in the United States and worldwide. We expect this symposium to energize work on urban places and health, generate novel ideas for research, and stimulate debate on policy implications. Participants will reflect critically on the links between urban environments and health, identify new opportunities for research (including novel data and methodological approaches), and consider implications for community action and policy. Our goal is to stimulate new ways of thinking about cities and motivate novel uses of data and methods to answer policy relevant questions.