Central Park is an urban park in the New York City borough of Manhattan. It was initially opened in 1857, on 778 acres of city-owned land. In 1858, Frederick Law Olmsted and Calvert Vaux won a design competition to improve and expand the park with a plan they titled the Greensward Plan. Wikipedia

The High Line is a 1-mile New York City linear park built on a 1.45-mile section of the elevated former New York Central Railroad spur called the West Side Line, which runs along the lower west side of Manhattan; it has been redesigned and planted as an aerial greenway. Wikipedia