The 15th Street–Prospect Park station is a local station on the IND Culver Line of the New York City Subway. Located at 15th Street east of Prospect Park West in the Windsor Terrace and Park Slope neighborhoods in Brooklyn, it is served by the F and G trains at all times. This underground station, opened on October 7, 1933, has two tracks and one island platform. The Culver Line's express tracks run via a separate routing underneath Prospect Park and are not visible from the platforms. Due to the alignment of the street grid, the station and tunnel were constructed about east of Prospect Park West, rather than directly under any street. This station was added to the U.S. National Register of Historic Places in 2005. History One of the goals of Mayor John Hylan's Independent Subway System (IND), proposed in the 1920s, was a line to Coney Island, reached by a recapture of the BMT Culver Line. As originally designed, service to and from Manhattan would have been exclusively provided by Culver express trains, while all local service would have fed into the IND Crosstown Line. The line was extended from Bergen Street to Church Avenue on October 7, 1933, including the 15th Street–Prospect Park station. Upon the station's completion, it served Windsor Terrace, a mostly residential area with brownstones and row houses occupied by European immigrants. It was also directly adjacent to Prospect Park and close to Green-Wood Cemetery. This station was added to the National Register of Historic Places on July 27, 2005. Service patterns The station was originally served by the A train. In 1936, the A was rerouted to the IND Fulton Street Line and was replaced by E trains from the Queens Boulevard Line. In 1937, the connection to the IND Crosstown Line opened and (later renamed the G) trains were extended to Church Avenue, complementing the E. In December 1940, after the IND Sixth Avenue Line opened, E trains were replaced by the , and the GG was cut back to Smith–Ninth Streets. Following the completion of the Culver Ramp in 1954, Concourse Express trains replaced F service to Coney Island. In November 1967, the Chrystie Street Connection opened and D trains were rerouted via the Manhattan Bridge and the BMT Brighton Line to Coney Island. F trains were extended once again via the Culver Line. The station acted as a local-only station