I remember going on a bus to the "north end" with a friend in the late 80s, and being a bit stunned that when he said "the north end", he meant Fort Needham, not Gottingen Street.
Then I went back to school at Leeds in 2013 and discovered there was an entire neighbourhood(s) I had never seen before. (And I finally knew what was over that hill I saw every time dad and I drove down "the Robie Street Extension".)
EDIT: I wouldn't really call Gottingen a "scary slum".