A place of worship for the Quakers, the Arch Street Friends Meeting House (sometimes just "Arch Street Friends Meeting House") is definitely worth a stop along the way, in Old City. Located on the corner of Arch and 4th Street, it is a short walk from the main attractions.
The meetinghouse was built between 1803 and 1805, and has some interesting exhibitions on the Quakers. When entering, to your left side (the original east wing) are displays on William Penn and the history of the Quakers. There are impressive dioramas, showing different aspects to Penn's life, as well as why they moved to the New World. The artwork is just amazing to look at, and there are more artifacts on display there as well.
The other side is the west wing, which is where the meetings of worship takes place, as it is still used to this day. A guide may be there, to give a lecture on the west wing, as they explain how and why the place is built the way it was, and the history behind it. Very interesting and informative, but will depend on who you get as a guide. The one I got, was interesting, but I forgot her name.
Definitely worth visiting, as one can learn more about William Penn and the Quakers, who founded the state of Pennsylvania. Admission is free, but donations are suggested.
This review is the subjective opinion of a TravelPod member and not of TravelPod.com.