One of the most unique features of Johnson-Sauk Trail State Park is the large, round barn built in 1910 and located near the park entrance. One of the largest round barns in the country, the architectural marvel stands more than 80 feet high and is 85 feet in diameter.The barn has a full-size16-foot wide silo inside. Round barns originally were built by religious groups because they "left no corners in which the devil could hide." Today, the barn is available to be toured the 1st, 3rd and 5th Saturdays, May through October from 1pm - 4pm.
