SALT LAKE CITY, Utah

Population > 1.1 million

Leading indicator > Youngest urban citizenry in the United States

Fast company > Alzheimer's drugmaker Myriad Genetics

Mayor Rocky Anderson, a liberal anomaly in Utah, is radically redesigning Salt Lake City's downtown. He envisions more green space and the return of City Creek, which now flows under the streets. The goal: a more open, human feel that attracts newcomers--among them traffic-weary Californians--to the city center.

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