Great Marsh
Flayer Jungle
hit plvl30 somewhere in here. cold mastery really gave a boost to my damage.
but more importantly, this goes to show that you don't have to do runs to gain levels in this game. I have no trouble killing monsters and have easily found comparable gear to what I am wearing at least 4 times over. A lvl30 sorceress with stats similar to mine should be able to solo Baal on p1 without much trouble.
Lower Kurast