Grand Central Terminal (often still called Grand Central Station, although technically that is the name of the nearby post office and New York City Subway station on the IRT Lexington Avenue Line) is a train station at 15 Vanderbilt Avenue in Midtown Manhattan, New York, a borough of New York City, located at 42nd Street and Park Avenue. Currently it serves commuters commuting on the Metro North Railroad to Westchester, Putnam, and Duchess counties in New York, and Fairfield and New Haven counties in Connecticut. It is also a major station on the New York City Subway; see Grand Central-42nd Street.Built by the New York Central Railroad (for whom it was named) in an era of many long-distance passenger trains, it is the largest train station in the world by number of platforms: 44, with 67 tracks along them. They are situated on two underground levels with 41 tracks on the upper level and 26 on the lower.