"CPL"-style railroad signal on the former B&O Railroad (now CSX), near Vine St, Philadelphia. The Philadelphia Museum of Art is visible in the background.
An underground trolley - who knew? Philadelphia's version of Seattle's underground bus, this LRV takes a dip below ground sharing a set of tunnels with the Market Frankford Elevated line in order... (more)
The "Pennsylvania Avenue Subway", built at the turn of the last century, provided a sub-grade connection between the Reading and the B&O. It served as an industrial lead for various central Phila... (more)