Now see I lived in Philly for a spell, so that is what I was thinking too.
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I found this online already divided and color-coded and I'm thinking that if you clean it up, tailor it to CC, there are a lot of important things to be included. Art Museum, Fairmount Park, Stadium District, Pat's & Geno's, Center City, Old City, Rittenhouse Square, Chinatown, Reading Terminal Market, the Airport, University of Pennsylvania, City Hall, The Philadelphia Zoo, the Franklin Institute....you could really focus on just Center and South Philly and still have a decent map, or include all the suburbs and areas like King of Prussia, Chestnut Hill, Germantown, . And the subways are pretty interesting too if you wanted to incorporate them too.
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