Anheuser-Busch, one of the world's largest beer brewers, was established at this site in the 1860s, and many architectural gems from that time period remain. Tours of the brewing process take in the 1885 Clydesdale stable, the historic 1892 Brew House, and the packaging plant, ending with free drinks. Allow 1 1/2 hours. Tours begin at 12th and Lynch streets (I-55 at Arsenal).