Port-au-Prince's nation is Haiti, a Caribbean country located on the western part of the island of Hispaniola. It is the most populous country in the Caribbean and the second-most populous country in the Americas after the United States. Haiti is known for its rich culture, vibrant music, and unique cuisine. It is also home to many historical sites, including the Citadelle Laferrière, a large fortress built in the early 19th century.