The 23rd Street station is a local station on the IRT Lexington Avenue Line of the New York City Subway. Located at the intersection of Park Avenue South and 23rd Street in Gramercy Park and Flatiron District, Manhattan, it is served by 6 trains at all times, <6> trains during weekdays in the peak direction, and 4 trains during late night hours.
The 23rd Street station was constructed for the Interborough Rapid Transit Company as part of the city's first subway line, which was approved in 1900. Construction of the line segment that includes the 23rd Street station started on September 12 of the same year. The station opened on October 27, 1904, as one of the original 28 stations of the New York City Subway. The station's platforms were lengthened in the late 1940s.
Wikipedia https://en.wikipedia.org/wiki/23rd_Street_station_(IRT_Lexington_Avenue_Line)
Address 299 Park Ave S, Manhattan 10010, United States
Coordinates 40°44'24.643" N -73°59'10.976" E