Downtown Miami has the largest concentration of international banks in the United States, and many national and international companies.[ The Civic Center is a center for hospitals, research institutes, medical centers, and biotechnology industries. For more than two decades, the Port of Miami, also known as the "Cruise Capital of the World," is currently
the number one cruise passenger port in the world. It accommodates some of the world's largest cruise ships and operations, and is the busiest port in both passenger traffic and cruise lines.