Many stations are actually grouped together with common entrances and free transfers between lines and even divisions going in diverging directions. Many complexes involve use of passageways, ramps, stairways and multiple level changes to access other lines within the complex. Most complexes are patched together since the three divisions were built by competing entities and they did not want people to use their competitors.

Atlantic Avenue/ Pacific Street         Borough Hall

Broadway Junction                           Broadway Nassau

Bryant Park                                      Canal Street

Chambers Street                               Columbus Circle

 Court Square                                    Delancey/Essex

Grand Central                                  Herald Square 

Metropolitan / Lorimer                     Myrtle/ Wyckoff              

 Stillwell Avenue                              Times Square

 Union Square                                  World Trade Center

 Yankee Stadium/ 161 street                        

14^th Street/ 6^th and 7^th Ave            14^th Street/ 8th Ave

168th Street Broadway                    4^th Avenue/ 9^th Street

51^st Street/ Lexington Ave             59th Street/ Lexington Ave

62nd Street/New Utrecht Ave        74^th Roosevelt