According to Wikipedia:
The 14th Street–Union Square station is a New York City Subway station complex shared by the BMT Broadway Line, the BMT Canarsie Line and the IRT Lexington Avenue Line. It is located at the intersection of Fourth Avenue and 14th Street, underneath Union Square in Manhattan. The complex sits on the border of several neighborhoods, including the East Village to the southeast, Greenwich Village to the south and southwest, Chelsea to the northwest, and both the Flatiron District and Gramercy Park to the north and northeast. The 14th Street–Union Square station is served by the 4, 6, L, N, and Q trains at all times; the 5 and R trains at all times except late nights; the W train on weekdays; and ⟨6⟩ train weekdays in the peak direction.
The Lexington Avenue Line platforms were built for the Interborough Rapid Transit Company (IRT) as an express station on the city’s first subway line, which was approved in 1900. The station opened on October 27, 1904, as one of the original 28 stations of the New York City Subway. As part of the Dual Contracts, the Broadway Line platforms opened in 1917 and the Canarsie Line platform opened in 1924. Several modifications have been made to the stations over the years, and they were combined on July 1, 1948. The complex was renovated in the 1990s and was placed on the National Register of Historic Places in 2005.
The Lexington Avenue Line station has two abandoned side platforms, two island platforms, and four tracks, while the parallel Broadway Line station has two island platforms and four tracks. The Canarsie Line station, crossing under both of the other stations, has one island platform and two tracks. Numerous elevators make most of the complex compliant with the Americans with Disabilities Act of 1990 (ADA). The Lexington Avenue Line station, serving the 4, 5, 6, and <6> trains, is not ADA-accessible. In 2016, over 34 million passengers entered this station, making it the fourth-busiest station in the system
I didn’t know any of this. I just liked the way it looked, a bit like the Art Nouveau stations of the Paris Métro, and certainly a cut above the usual utilitarian look of other NY subway stations.
Taken with a Fuji X-E3 and Fuji XC 16-50mm f3.5-5.6 OSS II