The freetown of Altaruk, from my Dark Sun campaign. I checked a fair bit of the source material too before designing it so alot of the names are legit.
The only thing different about my DS campaign was I set it prior to the hoohaa that went down at Tyr, and that I made the lizardlike Dray a playable race. You can't have this killer Brom critter on the cover and then tell the players they can't be one:
Dark Sun. Definitely my favourite official D&D setting.