Places we visited on our road trip from Maryland to Montana: United States Air Force Museum in Dayton, Ohio, John Deere sites in Moline, Illinios, Herbert Hoover National Historic Site in West Bank, Iowa, the flooding in Cedar Rapids, Iowa, the USS South Dakota memorial in Sioux Falls, South Dakota, the Corn Palace in Mitchell, South Dakota, the Badlands, Custer State Park in South Dakota, and Devils Tower in Wyoming.