What makes a city great? Different cities succeed by different measures, but a robust infrastructure, a strong sense of identity, a vibrant cultural scene and a prosperous economy are necessary for any successful modern metropolis. Since the turn of the century, Dubai has staked a credible claim to all four—and added a fifth: a can-do attitude. The city’s audacious spirit is encapsulated in a slogan the United Arab Emirates adopted: impossible is possible. Audacious plans produced growth that