You can study the exhibits at Conger House Museum, a museum with a storied past, during your trip to Washington. While you're in the area, wander around the natural setting.
Why not try your luck with a visit to Riverside Casino and Golf Resort during your visit to Riverside? While in this walkable area, you can savor the top-notch restaurants.
You can learn about the history of Columbus Junction with a visit to Lover's Leap Swinging Bridge. While you're in the area, wander around the natural setting.