As a subtropical city and the southernmost metropolitan area in the United States, Miami has always lured both visitors and migrants from throughout the Americas. During its first half-century they came primarily from the American North, then from the Latin South, and eventually from across the hemisphere and beyond. But if Miami's seductive appeal is one half of the story, the other half is that few people have ever ended up staying there. Today, by many measures, Miami is one of the most transient of all major metropolitan areas in America. Miami: Mistress of the Americas tells the...