The 125th Street station is an express station on the IRT Lexington Avenue Line of the New York City Subway. Located at Lexington Avenue and East 125th Street (also known as Dr. Martin Luther King Jr. Boulevard) in the East Harlem neighborhood of Manhattan, it is served by the 4 and 6 trains at all times, the 5 train at all times except late nights, and the train during weekdays in peak direction. The station contains four tracks and two island platforms split across two levels. The upper level