Five fantastic fictional cities

Willow Palecek's new novella is City of Wolves. One of five fantastic cities she tagged at Tor.com:New Crobuzon — Perdido Street Station by China Miéville

Perhaps the most fantastic city ever imagined, New Crobuzon is a vast city in a Victorian fantasy world, a corrupt industrial capitalist city, filled with citizens who are truly alien, rather than the traditional fantasy cultural depictions.