When they first moved to New York, Jerry was taking acting classes.  Jacquie was working at the Gaslight Club, which was a precursor of the Playboy Clubs that came along later.  They shared an apartment with Vaughn Maeder and his wife.  The apartment was laid out on a long hallway.  They each had one end of it.  Vaughn did a wonderful, funny impersonation of John Kennedy that was very popular.  Of course after Kennedy was killed it also killed Vaughn's act.  There is a Wikipedia entry about Vaughn:

http://en.wikipedia.org/wiki/Vaughn_Meader

The apartment was nondescript.  To liven it up they painted a skyline - profiles of buildings - on the wall of their living room.  It wasn't a replica of the New York skyline, just an interesting design.