Some twenty minutes north of Philadelphia, an Amtrak Regional rounds a tight bend into Bristol, catching the last light of a setting Sun while en route to Trenton, NJ and points east. In the background, Philadelphia's Liberty I and Liberty II towers can be seen.
Landscape photography is difficult due to the challenge of combining good light and good scenery. Good railroad photography enters another level of complexity since it requires the first two while there is a train in view.