Railroads, of course, were fundamental to 19th-century industrialization, and remain important even today. Pennsylvania was at the heart of the United States railroad development in the 19th century. Pennsylvania coal largely fueled the locomotives, and the state’s iron and steel industry furnished much of the infrastructure. In addition, the Baldwin Locomotive Works, outside Philadelphia, was the top U.S. producer of steam locomotives for decades in the latter 19th century. The Railroad Museum of Pennsylvania highlights this history. Locomotives, rolling stock, and lots of ancillary equipment are displayed in an enormous exhibit…
