I will be connecting on my way back to Paris ( mid nov) in PHL, landing at 3:47PM from EWR and connecting at 8:45PM to CDG.

Reading from this post, I assume I can get on the train, then stay maybe 2-2hrs 1/2 ? Say, 5PM in the city, and get back to airport at 7PM - In which case, what would you advise me to visit during this very short time ? we are French and have never been to PHL ( I have seen Liberty bell but that was like 12 years ago and don't remember much of it ...).And those two hours , even short, will always be better than an airport lounge !

Thanks for any tip,

FRanceUSA