The Pit: For pit miners only. The Mines: For miners and workers only. The Complex: Above the Mines, under the Streets. Miners hang out here. Freight trains hang out here. The Streets: Slummy part of the city. Gets a bit better the more central you are. First Upper: Quite an improvement to the Streets. Partially restricted. Second Upper: Government and business offices. Restricted area. Third Upper: Residences for the rich and powerful. Restricted area. Fourth Upper: More residences, airship docks, fancy retail and restaurants, touristy stuff. Restricted.