It's impossible to say, without knowing exactly where in Brooklyn you're coming from. Brooklyn is almost 100 square miles in area and almost all of New York City's subway lines run through it. The directions will be completely different, depending on where in Brooklyn you're coming from.
The only subway lines that stop at 42nd Street-Grand Central Station are the 4-5-6 (the dark green line) and the 7train (the purple line). Of these, the 4 and 5 are the only lines that run into Brooklyn. Unless you are starting out near one of the stops on the 4 and 5, you will have to transfer.
Take the Downtown 4-5-6 (the dark green line) from 42nd Street-Grand Central Station to Brooklyn Bridge-City Hall.You will want to take the 4 or 5, though, not the 6, as the 4 and 5 are express trains and it's only 2 stops from 42nd Street-Grand Central to Brooklyn Bridge-City Hall.
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.
The Antwerp central station is bigger than the Grand Central rail station.
the city that grand central station is in is new york city.
Grand Central Station - Chicago - was created in 1890.
Grand Central Station - Chicago - ended in 1969.
Grand Central - IRT elevated station - ended in 1923.
Grand Central - IRT elevated station - was created in 1878.
Cornelius Vanderbilt created the Grand Central Train Station that was built in 1871.
VIA subway
It'll take you about 1 hour to one hour & a half to get to south east station.