Wynnewood - Castalian Springs Album Random 2 Image 75/78 May 02, 2015 15:36 Original Metadata Camera Model:Canon EOS 50D Original Time Taken:May 02, 2015 15:36 Shutter Speed:1/400 sec Aperture:f/11 ISO Sensitivity:500 Exposure Compensation:-0.33 EV Metering Mode:Pattern Flash Fired:No Flash Focal Length:28 mm Wynnewood is a National Historic Landmark in Sumner County. Dating back to 1828, this former stagecoach Inn is the largest existing log structure in Tennessee. The building features significant restoration following tornado damage in 2008.