Tourism in New York City generation Americans up and down the East Coast. New York City has over of parkland and 14 linear miles (22 km) of public beaches. Manhattan's Central Park, designed by Frederick Law Olmsted and Calvert Vaux, is the most visited city park in the United States. Prospect Park in Brooklyn, also designed by Olmsted and Vaux, has a meadow. Flushing Meadows-Corona Park in Queens, the city's third largest, was the setting for the 1939 World's Fair and 1964 World's Fair. According to NYC & Company, the official destination marketing organization for the city, the top producing countries for international visitors to
Central Park Nicholas Park, Jackie Robinson Park, and Marcus Garvey Park. The park has its own New York City Police Department precinct—the Central Park Precinct—which employs both regular police and auxiliary officers. In 2005, safety measures held the number of crimes in the park to fewer than one hundred per year (down from approximately 1,000 annually in the early 1980s). The New York City Parks Enforcement Patrol also patrols Central Park. There is an all-volunteer ambulance service, the Central Park Medical Unit, that provides free emergency medical service to patrons of Central Park and the surrounding streets. It operates a rapid-response bicycle