Wikipedia always amazes me. There's even an article about the infamous Langstrasse in Zurich, where we work (and I also almost live). I even learned a new fact about it:
Das Stadtquartier Langstrasse weisst mehr Straftaten auf als die ganze Stadt Bern
Translated: There's more crime in this small part of the city than in the whole city of Berne.. But it's not really surprising, since a lot of Zurich's drug dealing and red light night life happens here. And the comparison is made against Berne, after all :)
There's also a page about Gunzwil, where I grew up and which is a really small rural village in northern Lucerne. And Ittigen, the agglo-town outside of Berne, where I was born and lived until kindergarten (but that article isn't very informative).