The second-largest city in Florida is Miami, which has five letters. Miami is a major port city on the Atlantic coast of south Florida in the southeastern United States. It is the most populous city in Florida and the eighth-most populous city in the United States, with a population of over 450, 000 people. Miami is a major center and a leader in finance, commerce, culture, media, entertainment, the arts, and international trade. It is home to many cultural institutions and landmarks, such as the Vizcaya Museum and Gardens, the Freedom Tower, and the Miami Seaquarium.