Sam, the City Creation rules have a large section that talks about different ways to research your chosen city and apply that history to the game setting. To be honest, though, we never got that far. This bit was in the end of the chapter and was there to help if you have some "creator" block and needed more inspiration. For ours, the initial parts of the City Creation was enough. Granted, we did a city we all knew well, our hometown of Cleveland. What was funny is that while I think we accurately captured the look, feel and "theme" of the City we didn't even have to go to the obvious local legends! We had Torso Murders, Franklin Castle (which has lots of haunting tales), Mansfield State Penitentiary (also haunted), etc., etc. Instead, we created legends building upon existing stories in the city that have never had mystical connections. Weird but very fun and wildly creative. Cleveland doesn't look anything like Chicago, the home of Dresden. It has a power structure and groups of good and bad guys that, while connected to the larger Dresdenverse, is wholly its own and very Cleveland focused.