Besides, what other city could have given us Poe?
Poe lived & wrote in Philadelphia for six years. His house is apart of the National Park Service and can be toured. Also Bram Stoker wrote a part of Dracula in Philadelphia at the Bellevue Stratford (also the same hotel where the first cases of Legionnaires disease was documented) which could make for an interesting hook to include Kincaid and his former employers in. Another cool thing is that anyone can go and talk to the ghost of Benjamin Franklin at the Lights of Liberty tour, they advertise it right in their brochure. And the Masonic Temple across from City Hall could make for an excellent headquarters for the Venatori Umbrorum. Fairmount Park is the largest municipal park in the world, which gives tons of great environments for the Faerie Courts. And with a name like Martha Liberty how could Philadelphia not have it's own resident member of the White Council making it a prime target in the timeframe during the White Council/Red Court war. That is if one was doing any research for a campaign set in Philadelphia.