Miami is a major port city on the Atlantic coast of South Florida in the southeastern United States. As the seat of Miami-Dade County, the municipality is the principal, central, and the most populous city of the Miami metropolitan area and part of the second-most populous metropolis in the southeastern United States. A little more than a century ago, a city sprung up almost overnight. As a result, one of Miami’s many nicknames is the Magic City. Miami is nicknamed the "Capital of Latin America “and is the largest city with a Cuban-American plurality. Miami is a major center, and a leader in finance, commerce, culture, media, entertainment, the arts, and international trade.