Hour: opens every day from 5:30 a.m. to 2:00 a.m.
Grand Central is a terminal station on 42th street and Park Avenue in Midtown Manhattan. The most striking part of the station is undoubtedly the Vanderbilt Hall, it’s a waiting area of over 1,100 square meters, it calls attention to its neo-classical forms, its sculptures, the transparent dome of the central building, the constellations in the ceiling, columns and marble floor, the stairs you do not know where it leads... The huge figures of Roman gods, Mercury, Minerva and Hercules look down from 42nd Street. It has five restaurants and bars, 35 casual restaurants in the basement, the lower level dining room, and 68 specialty stores across the halls. This terminal has 67 trains and 5 subway platforms. Some 750 trains arrive and depart daily from the terminal.
Grand Central station counts with audio tours for rental, or you can download it to your phone with the app: http://goo.gl/UB6KCi
Grand Central offers a guided tour from 9 am to 6 pm, but it can get extended during holidays, the tour last 75 minutes and starts every day at 12:30 pm, it has a cost.
In the middle of the great lobby there is an information booth, that attends more than 1000 questions every hour, you can use it if you need an orientation, observe in the top of the booth a four-face clock, it's value in 20 million dollars.