Copacabana is a famous beach in Rio de Janeiro, Brazil located along the Atlantic Ocean. It is known for its scenic 4km beach, vibrant nightlife, and for hosting massive New Year's Eve celebrations and sporting events that attract millions of people annually. The surrounding Copacabana neighborhood is densely populated and has a high Human Development Index, though it also contains some slums. The beach's iconic black and white tiled promenade designed by famous Brazilian landscape architect Roberto Burle Marx adds to Copacabana's allure and status as one of the most famous beaches in the world.