Lots to see ...
There are lots of things to see in the Midwest, Midlands, and West
St. Louis --> Gateway Arch & Museum,
South Dakota --> Black Hills and Badlands,
Wyoming --> Yellowstone Park and Tetons,
Idaho --> Snake River Boat Rides,
Colorado --> Rocky Moundtain National Park,
Utah --> Arches, Zion, Capital Reef, and Bryce Canyon National Park,
Arizona --> Grand Canyon and Sonora Desert,
Oregon --> Mulholland Falls,
California --> Kings Canyon, Yosemite, Sequoia, Redwoods, Sonoma wineries, Big Sur,
You can't see them all .. but choosing a route which lets you see some of them is way more important than avoiding an hour or so of heavy traffic in Chicago ... at least in my way of thinking ...
2004 Winnebago Journey 39W - 2012 Buick Enclave
Present @home Home: Oshkosh, WI
We call our rig "Ernie the Journey"