Billing itself as "The Factory Tour Capital of the World," York, Pennsylvania, is the home of thirteen different factories open to the general public. Find out how everything from potato chips to motorcycles are made! The free Harley-Davidson Motor Company Tour takes visitors into the plant to watch an assembly line churn out hogs. The York Barbell Factory includes the USA Weightlifting Hall of Fame, where visitors can see such sights as a license plate torn in half using only bare hands.