Historic Barns of OhioFrom the glacier flattened northwest to the Appalachian hills and valleys to the east and south, barns dot the Ohio landscape. Built with wooden nails and mortise and tenon joints and assembled with beams hand hewn from nearby trees, some of these magnificent structures have witnessed three centuries. Many display the unique carpentry of masterful barn builders, including mystery wooden spikes and tongue and groove two inch flooring. Sadly, a number