Originally built for freight trains in the 1930s, the High Line is an elevated rail structure on Manhattan’s West Side that has been turned into the city’s most popular new park. The structure was saved from demolition by Friends of the High Line, a community-based non-profit organization that advocated for the preservation and reuse of the structure as a pedestrian promenade. In 2011, Phase 2, from West 20th Street to West 30th Street, was opened to the public. The first section, from Gansevoort Street to West 20th Street, was opened in 2009.