Route: Chicago → Gemini Giant → Henry's Rabbit Ranch → Meramec Caverns → Cars on the Route → Blue Whale of Catoosa → Oklahoma State Capitol → National Route 66 Museum → Cadillac Ranch → Midpoint Café → Old Town Albuquerque → Central Avenue → El Malpais National Monument → Petrified Forest National Park → Standin' on the Corner Park → Mather Point → Lowell Observatory → Seligman → Oatman → Elmer's Bottle Tree Ranch → Hollywood Boulevard → Santa Monica Pier ✅ Current month (May) is in this region's prime season. Grand Canyon / Zion / Antelope: Mar-May & Oct best. Jun-Aug 40°C+ heat is dangerous on trails.