Ford City, PA, United States
Pittsburgh Plate Glass Ford City Works. Among the largest and most productive plate glass factories in the world; opened 1887. At its peak, the plant employed more than 3,500 ethnically diverse workers, who passed through a specially-built tunnel under busy train tracks. Operations ended 1991.
Listen to the audio guide for Blue plaque № 28430 Free on WIP — starts by itself when you arrive, even with the screen off