A trainset of the SEPTA Regional Rail network, which radiates from the Market East station. The train terminal is situated beneath the GALLERY mall complex.
Photo from www.septa.org
 

A shot of one of the mosaic-covered walls at what was originally known as the SEPTA Market East Station. The official name of the rail terminal was changed to Jefferson Station in September 2014.
Photo from Wikipedia / "Coemgenus"