University of Pennsylvania president Amy Gutmann was similarly explicit in articulating Penn’s commitment to undocumented students in an email to the university community, insisting that “we are a richer campus for our inclusion and diversity.” As dean of the School of Design at Penn, where I also teach in the Departments of City Planning and Landscape Architecture, I believe now is the time to expand this sanctuary city concept; to make all our cities refuges for learning, for health and safety, for tolerance and inclusion, and environmental quality.