This image was acquired from
flickr and wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
outdoor skyline water waterfront sky PTC Philadelphia Transit Commission Roger Puta photograph PTC Philadelphia Transit Commission Roger Puta photograph PTC Philadelphia Transit Commission Roger Puta photograph PTC Locust St. Camden Line view from subway car as it crosses the Delaware River across the Ben Franklin Bridge between