You see Sow's Foot district, that is where a a lot of the more exotic races like Lizardfolk and Deep Gnomes live. Twin Songs is a very religious district, filled with shrines, even to fiends. Blackgate has a lot of Dwarves. Little Calimshan is basically what it says on the tin, it was made by Calimshite Refugees from the civil wars in Calimshan, it's designed like a mini Calimport and it's walled off like the inner and outer districts. Bloomridge has a gang called the Bloomridge Dandies. You can't see it on the map, because it's not an official district and it's runs underground, but there is also Undercellar, which is underground. Basically an Uber brother, slash drug den, slash illegal goods emporium, slash connected to the Underdark. BG has really expanded and added a lot of cool stuff since BG1, thanks to refugees from the Spellplague, Sundering, and other stuff.,