Main Street at Exton, 103 Woodcutter St.
Exton, PA 610-363-2426
It's a good bet that even if you somehow miss the clues - incessant hammering and traces of black smoke rising from the chimney - you'll know how a metal forge operates after you visit the restored Ashbridge barn and see Wendell August's skilled artisans working around a large hearth. Take a free tour, where you'll learn how the company's namesake pioneered the use of aluminum.