Aerial photography has opened up seemingly endless new perspectives on our favorite rail locations to enjoy. At the extreme eastern end of the Rockville Bridge in Marysville, Pennsylvania, we catch a standard cab leader, Norfolk Southern 8864 (C40-9), westbound on 8/25/2016. Since Rockville was completed by the Pennsylvania Railroad in 1902, it has remained the longest stone masonry arch railroad viaduct in the world.