Grand Central Terminal Station 100th Anniversary, New York City, United States

Three buildings serving essentially the same function have stood on this site. The original large and imposing scale was intended by the New York Central Railroad to enhance competition and compare favorably in the public eye with the archrival Pennsylvania Railroad and smaller lines.
• Grand Central Depot
Grand Central Depot brought the trains of the New York Central and Hudson River Railroad, the New York and Harlem Railroad, and the New York and New Haven Railroad together in one large station. The station was designed by John B. Snook and opened in October 1871. The original plan was for the Harlem Railroad to start using it on October 9, 1871 (moving from their 27th Street depot), the New Haven Railroad on October 16, and the Hudson River Railroad on October 23, with the staggering done to minimize confusion. However, the Hudson River Railroad did not move to it until November 1, which puts the other two dates in doubt.
The headhouse building containing passenger service areas and railroad offices was an "L" shape with a short leg running east-west on 42nd Street and a long leg running north-south on Vanderbilt Avenue. The train shed, north and east of the head house, had three innovations in U.S. practice: the platforms were elevated to the height of the cars, the roof was a balloon shed with a clear span over all of the tracks, and only passengers with tickets were allowed on the platforms (a rule enforced by ticket examiners). The Harlem, Hudson and New Haven trains were initially in side by side different stations, which created chaos in baggage transfer. The combined Grand Central Depot serviced all three railroads.