TN-TX-NM-AZ-CA-NV-AZ-CO-KS-MO-TN

Husband and I are planning to leave on a road trip 9 April. Our route is: TN - to Little Rock AR - Dallas TX - San Antonio TX - across US 90 to Van Horn and up to Carlsbad Caverns - El Paso TX - Albuquerque NM - Holbrook AZ - Needles CA - Sequoia - Yosemite - up to Tahoe area and down US 395 to Independence CA - Death Valley - Vegas - Zion - Grand Canyon - Monument Valley - 4 Corners - to the south of Shiprock - back up to Mesa Verde - Great Sand Dunes - CO Springs - Leadville - I-70 to Salina KS - Witchita - Topeka - Lawrence KS - St. Louis MO - Sikeston - back to TN. Whew!

What I'm looking for is:
*Cool places to see along the route.
*Don't miss places to eat
*Regional foods we should try
*Places to miss - tourist traps, etc

Thanks!!!

TJ