Take the Uptown 1 train (of the 1-2-3, the red line) from 34th Street-Penn Station to 50th Street (at Broadway). Then walk north on Broadway to the David Letterman/Ed Sullivan Theatre, on Broadway between 53rd and 54th Streets.
VIA subway
Not possible these days. Amtrak no longer has service to Grand Central Terminal. BTW - Grand Central Station is the subway station. The railroad station is Grand Central Terminal.
Grand Central Terminal is the name of the railroad station at 42nd St/Park Avenue. Grand Central Station is the name of the subway station which is below Grand Central Terminal.
Grand Central Station
Yes- Grand Central Station is the name of the SUBWAY station which is below ground (4, 5, 6, 7 and "s" 42nd St Shuttle lines). The RAILROAD station (MetroNorth Railroad) is known as Grand Central Terminal and is at street level.
Grand central is not that far from the Empire State Building. You could walk it with no problem.
No, they are two separate subway stations.
No, but it does stop at penn station and you can take the subway
To get to 26 Federal Plaza from Yonkers using the subway, first take the Metro-North Railroad from Yonkers station to Grand Central Terminal. From Grand Central, transfer to the 4, 5, or 6 subway line downtown. Exit at the Brooklyn Bridge-City Hall station, and from there, it's a short walk to 26 Federal Plaza. Alternatively, you can take the 2 or 3 subway lines from Grand Central to Chambers Street, which is also close by.
Grand Central Station & Terminal are located at East 42nd Street between Park and Lexington Avenues. Grand Central Station is the subway station, where you can catch the 4-5-6 (the dark green line, aka the Lexington Avenue Line) or the S shuttle train to Times Square. Grand Central Terminal is the railroad terminal, for trains that are not part of the New York City subway system (like MetroNorth commuter trains).
According to Wikipedia and the MTA themselves, 77 of New York City's subway stations have working bathrooms, and 28 of these stations are in Manhattan. However, according to the Related Link (see below), in Manhattan, only 8 of these stations are actually functioning and open to the public (9 including "the developer-financed wonder bathroom at the Times Square Station"). The only one on the 6 line is the Brooklyn Bridge-City Hall Station. There are also bathrooms at Grand Central Terminal, downstairs, near the food court. The 4-5-6 line stops at 42nd Street-Grand Central Station, but Grand Central Station is the subway station, while Grand Central Terminal is the railroad station. So, you would have to exit the subway system to use the bathroom, and then pay another fare to get back on the subway.
take the Shuttle or 7 train from Grand Central to Times Square and transfer to the 1 train uptown to 59th Street/Columbus Circle