The barn stands 80 feet high and 85 feet in diameter and features a 16-foot diameter floor to ceiling silo. A farm implement museum in on the main floor. Tours are provided by Friends of Johnson’s Park Foundation and groups of ten or more asked to call ahead. This is a must-see site at the entrance to the Johnson-Sauk Trail Park, located on Route 78, near Kewanee. Ryan’s Round Barn, one of the nation’s largest round barns, measuring eighty feet high and eighty-five feet in diameter, and one of forty-two remaining in the State of Illinois, is an architectural marvel. One outstanding feature of Ryan’s barn is its sixteen-feet-wide silo with a moisture-resistant plastered interior located directly in the building’s center. Modern efficiencies from the past include centrally located waste drains and a dual track and trolley system used for delivering feed and for removing waste. The barn’s main floor houses an extensive collection of agricultural antiques. Open the first, third, and fifth Saturday beginning May through October. Hours: 1 p.m. to 4 p.m.