Once the powerhouse of America's industrial might, Detroit is more recently known in the popular imagination as a fabulous ruin, crumbling and bankrupt. But city planner Toni Griffin asks us to look again -- and to imagine an entrepreneurial future for the city's 700,000 residents.

Griffin recently served as director of the Detroit Works Project, and in 2012 completed and released Detroit Future City, a comprehensive citywide framework plan for urban transformation