Pennsylvania's manufacturer center, York bills itself as the Factory Tour Capital of the United States. Among the companies based in York that offer tours of their facilities are Harley-Davidson motorcycles, several candy manufacturers, and the York Barbell company. York Barbells also sponsors the Weightlifting Hall of Fame, which is located next to their factory. York's other major claim to fame is as one of the nine capital cities of the United States, having been home to the Continental Congress for a period of approximately one year during the Revolutionary War. During this period, the first Articles of Confederation for the United States were adopted here. History buffs can stroll around the city's many famous landmarks and historically significant buildings, such as the Bonham House and the York County Colonial Complex, which date back to the early 18th Century.