KeyStone history is tied to the utopian dream of developer E.H. Guyer, who wanted a healthy residential area mid-way between Rock Island and Moline. Although Guyer’s “KeyStone District” was never realized, many ordinary citizens eventually built here looking for what Guyer promised. Most of the major styles prevalent in American architecture from the 1870s to the 1940s exist within the boundaries of KeyStone Neighborhood. Check out the splendid display of the uniquely Midwestern Foursquare homes.