Travel back to simpler days when business in Missouri was about the rushing of a stream over a dam and bridges were covered. Visitors to Bollinger Mill State Historic Site can learn how wheat and corn were ground into flour and meal in the massive four-story mill that dates to the Civil War era. Or they can stroll through the Burfordville Covered Bridge, one of just four covered bridges that remain in Missouri. The site’s rustic setting offers ample picnicking and exploration opportunities along the Whitewater River. Both structures are in the National Register of Historic Places.