The map in the gazeteer shows other parts of the city not detailed in the text. So GMs can stick whatever they want in there, I suppose.

So what have / would YOU stick in there, in order to give your players a hard, I mean Interesting, time?

which parts do you mean, specifically?

Been a while since I ran Damned Cities.

The map on page 14 shows districts labeled from I to XIII, but the following are not described in the text of the gazeteer:

II, IV, VIII, IX, XI and XII.

My players traveled through section VIII, and I just winged it as an industrial area with manufactorums and such.