Some people may think that once you’ve studied one city, you’ve studied them all. which is an example of why these people may be misinformed? london has a subway system and new york city does not. the banlieues, or suburbs, of paris are the bad parts of town, almost inside-out compared to baltimore. hong kong does not have a mcdonald’s but detroit does. the exurbs of prague are actually in the middle of the city while the exurbs are on the outside of los angeles.