It depends on where you're coming from. The closest subway stop is the 59th Street-Columbus Circle Station on the B and D (of the B-D-F-M, the orange line), the A and C (of the A-C-E, the blue line) and the 1train (the 2 late nights), of the 1-2-3, the red line.
The 59th Street-Columbus Circle Station is at Columbus Circle (obviously), which is 59th Street between 8th Avenue and Broadway.
But, unless one of these trains stops near your starting point, you'll have to transfer. It's impossible to tell you which train you'll have to transfer from, and where, without knowing your starting point.
Furthermore, it may be worth it to take another train to another stop that is not as close to 444 West 56th, to save yourself a transfer or two. For example, if the Q train (of the N-R-Q-W, the yellow line) is closest to your starting point, then it would be better to just take the Q to 57th Street-7th Avenue, and walk the rest of the way. It'll be a slightly longer walk than from the 59th Street-Columbus Circle stop, but then you don't have to make any transfers.
To travel from Utica Avenue to 23rd Street in Manhattan, you can take the A train or the C train from Utica Avenue station. You would ride the train towards Manhattan and transfer at either the 42nd Street-Port Authority Bus Terminal or 34th Street-Penn Station, then take the E train to 23rd Street. Alternatively, you can take the 2 train from nearby stations to reach 23rd Street directly.
From Penn Station in New York, you can take the Uptown R, N or W train and get off at the Fifth Avenue stop. You can then walk down Fifth Avenue to 53rd Street which is where F.A.O. is located.
In Lower Manhattan, the 1 train (of the 1-2-3, the red line) runs up and down West Broadway, then Varick Street, and then 7th Avenue South, starting at Houston Street. It runs up and down 7th Avenue South from Houston Street to 11th Street, when 7th Avenue South becomes regular 7th Avenue. From 11th Street to 59th Street, it runs up and down 7th Avenue. Above 59th Street, almost all the way to the tip of Upper Manhattan, it runs up and down Broadway.
To reach 550 1st Avenue in Manhattan, you can take the 6 train to the 33rd Street station. From there, it's about a 15-minute walk to your destination. Alternatively, you can take the L train to the 1st Avenue station and walk a short distance east.
Take the Manhattan-bound L train from Broadway Junction to 14th Street-6th Avenue, and transfer there to the Uptown F train to 21st Street-Queensbridge.
Tiffany and Co. is located at 727 Fifth Avenue, at the southeast corner of 57th Street. Take the Uptown E train (of the A-C-E, the blue line) from 34th Street-Penn Station to 5th Avenue-53rd Street. Then walk 4 blocks up Fifth Avenue to 57th Street.
Take the Uptown E train (of the A-C-E, the blue line) from 34th Street-Penn Station to 53rd Street-5th Avenue. Fifth Avenue is one block west of Madison Avenue.
I would take the L to the end of the line in Manhattan, 8th Avenue-14th Street. Then, if you're going to Upper Manhattan or the Bronx, transfer to the Uptown A express train to 59th Street-Columbus Circle, 125th Street or 145th Street, and transfer there to the Uptown D.If you're going to Lower Manhattan or Brooklyn, transfer to the Downtown A-C-E, 1 stop, to West 4th Street, and transfer there to the Downtown D.
I would take the L to the end of the line in Manhattan, 8th Avenue-14th Street. Then, if you're going to Upper Manhattan or the Bronx, transfer to the Uptown A express train to 59th Street-Columbus Circle, 125th Street or 145th Street, and transfer there to the Uptown D.If you're going to Lower Manhattan or Brooklyn, transfer to the Downtown A-C-E, 1 stop, to West 4th Street, and transfer there to the Downtown D.
The L train (color code grey) runs east-west and west-east across 14th Street. Its eastbound route begins at 14th Street and 8th Avenue. It runs east across 14th Street, and then under the East River and out to Canarsie, Brooklyn. Its westbound route begins in Canarsie, Brooklyn. It travels west across Brooklyn, through Williamsburg, and then under the East River and across 14th Street to the west side of Manhattan (14th Street and 8th Avenue). In Manhattan, you can catch the L train at the following stations (in order from west ---> east): 14th Street and 8th Avenue, 14th Street and 7th Avenue, 14th Street and 6th Avenue, 14th Street and Lexington Avenue (the Union Square Station), 14th Street and 3rd Avenue, and 14th Street and 1st Avenue. 14th Street and 1st Avenue is the last stop in Manhattan, before the L goes to Brooklyn. The first four stops the L makes in Brooklyn are all in the Williamsburg neighborhood: Bedford Avenue, Lorimer Street, Graham Avenue, and Grand Street are all in Williamsburg. See the Related Link below for a complete NYC subway map.
To get to Abercrombie & Fitch on Fifth Avenue in New York City, you can take the subway. The most convenient option is to take the N, Q, R, or W train to the 5th Avenue/59th Street station. Alternatively, you can take the 4, 5, 6 train to 59th Street/Lexington Avenue and walk a short distance to the store. Both routes will put you within walking distance of the location.
Take the Uptown 6 train (of the 4-5-6, the dark green line) from 33rd Street (at Park Avenue) to 86th Street (at Lexington Avenue). Park Avenue is the next avenue east of Madison, and 3rd Avenue is the next avenue east of Lexington.