|The entire NS heritage fleet | Image courtesy of Norfolk Southern Corp. via RailPictures.net|
This is probably the best photo ever of a group of locomotives. Norfolk Southern really knew what they were doing with this fleet. All of the paint jobs look downright amazing. My favorites would have to be Conrail, Lehigh Valley, and Nickel Plate Road. I've only been lucky enough to see one of them in person so far (Lehigh Valley in the old Conrail Sterling yard just down the road from me), but I'm hoping to see more of them someday.