Michael is in Milwaukee, located on the shore of Lake Michigan and home of the Harley-Davidson. Michael learns about the history of motorcycles there, the first of which was made in 1903, and hitches a ride on the back of a modern version.German gymnastics is Michael's next challenge as he joins the Ladies' Auxiliary Exercise Class, a legacy of Milwaukee's 19th-century German settler community which is still going strong today.In Racine, Michael discovers a man who knew how to sort the wheat from the chaff and made a business out of it.