lexington avenue/53rd street station. on Flickr.

The Lexington Avenue/53rd Street station is quite a busy hub. The E and M trains stop here, and there’s a connection to the 51st Street station on the 6 line. Because the Lexington Avenue line was build before the Queens Boulevard line, the station needed to go beneath the existing line, making the escalators and staircases among the longest in the system (there are escalators on both the Third and the Lexington Avenue sites). When one of the escalators is out, it’s not fun at all.