This document outlines a 12-day itinerary for a road trip along Route 66 from Chicago to Los Angeles. The trip includes visits to major cities and landmarks along the route like St. Louis, Springfield, the Grand Canyon, Las Vegas, and Los Angeles. For each day, specific attractions and activities are listed as well as where the travelers will sleep and eat. The itinerary provides a detailed plan to experience the highlights of Route 66 over 12 days of travel.