Built between the years 1858 and 1873, Central Park is almost entirely man-made and considered to be a single work of art. Composed of natural elements – turf, woodlands, and water bodies, along with architectural elements, this 843-acre National Historic Landmark receives 42 million visits from over 9 million unique visitors each year. Founded in 1980, the mission of the Central Park Conservancy is to restore, manage and enhance Central Park in partnership with the public.