Ogle County, Illinois
Oval barn - IL-71-08 Round barn - IL-71-01 Round barn - IL-71-02 Doughnut barn - IL-71-05 Doughnut barn - IL-71-06 Oval barn - IL-71-07 Octagon church - IL-71-12 Round barn - IL-71-03 Round barn - IL-71-04 Octagon house - IL-71-10 Hexagon house - IL-71-11