Phoenix Iron Company. Established in 1783 and incorporated in 1855, the Phoenix 'works' produced nails, rail, Civil War cannons, weaponry for 20th century wars, and structural steel. Among its well known products were the Griffen Gun, 1861, and the Phoenix Column, 1862. Closed in 1987.

Main St. at Price St. near municipal parking lot, Phoenixville, PA, United States

Valley Forge General Hospital. Opened in 1943, it was among the nation's largest military hospitals by the end of World War II. Able to treat more than 3,000 patients in over 100 buildings, the facility specialized in the pioneering treatment of war-related eye and burn injuries, introducing innovations in eye surgery, plastic surgery, and rehabilitation. The hospital treated casualties of World War II, the Korean War, and the Vietnam Conflict before closing in 1974.

near 1401 Charlestown Rd., Phoenixville, PA, United States