The methodology for choosing the winners includes such qualities as how well the space accommodates pedestrians, bikes and transit; the sense of comfort and safety it provides; how the space utilizes the existing typography; and even a "Is there variety, a sense of whimsy, or an atmosphere of discovery or pleasant surprise?"
While a lot of well-established parks were recognized, the Campus Martius Park in Detroit is of more recent vintage:
"Located in the heart of downtown Detroit, former Mayor Dennis Archer's goal for revitalizing Campus Martius was nothing short of making the park "the world's best public space." Reopened in November 2004, the striking, 2.5-acre park was an instant success."