This former Bethlehem Steel plant in Steelton, Pennsylvania, stretching for four miles along the Susquehanna south of Harrisburg, was the first large-scale integrated steel complex in America, and the fist plant to use the Bessemer steel-making process. It was established in 1866 by the Pennsylvania Steel Company, and is one of only three plants in North America that still produce railroad rail - the same product that the plant was built for nearly 150 years ago. Now owned by ArcelorMittal.