14th Street (IND Sixth Avenue Line)

Wikipedia - "14th Street is a local station on the IND Sixth Avenue Line of the New York City Subway. Located at the intersection of Sixth Avenue and 14th Street in Manhattan, it is served by the F train at all times, and by the M train on weekdays. This underground station opened on December 15, 1940 along with the rest of the IND Sixth Avenue Line from West Fourth Street – Washington Square to 47th–50th Streets – Rockefeller Center. Free transfers are available to Sixth Avenue on the BMT Canarsie Line (L train), which is directly underneath the extreme south end of this station, and a walkway from the Canarsie platform provides a transfer to 14th Street on the IRT Broadway – Seventh Avenue Line (1, 2 and 3 trains)."
Wikipedia
14 Street/IND 6 Avenue Line