Planning a trip to see my daughter graduate high school in Stephn MN!! Gonna cage it with wife and step-daughter. Yeah... FUN! Anyway... am looking for anything cool to see taking the slow way home on the way back. The way there will be as quick as I can make it. I-25-Denver. I-96/80 to Northe Platte. Up US 83 to North Dakota. East to Grand Forks. Farther east and a bit north to Stephen. No problem. Problem is, I wanna see some stuff and take my time on the way home. Any suggestions?!