For decades, civic leaders have tried to revitalize Market Street, San Francisco’s central thoroughfare, only to see their efforts founder. “I sometimes call it the great white whale of San Francisco,” says Eric Tao, managing partner at L37 Development in San Francisco and co-chair of ULI San Francisco. “Every new mayor, every new planning director, every new economic development director has chased that white whale.” This year, however, an international competition of ideas hosted and run by ULI San Francisco, with support from the ULI Foundation, generated fresh momentum for reimagining the boulevard. The competition drew 173 submissions from nine countries and sparked new conversations about the future of downtown San Francisco.