This installment of IDEAS CITY is devoted to the exploration of Untapped Capital. The mayors on this panel have interpreted Untapped Capital in their own, individual ways. For some cities, Untapped Capital might be neighborhoods; for others, the arts. Governmental efficiency and green power offer reserves of Untapped Capital, while “downtown” revitalization and transit expansion may have proven less stable resources. How does a city’s history become Untapped Capital and how deeply is a city’s identity tied to its resilience? The mayors will cite specific examples of their utilization of Untapped Capital from their tenures while also considering the context of their cities within a larger national and international framework.