Arcing its way across the United States, historic Route 66 was once the shortest all-weather route traveling through Illinois, Missouri, Kansas, Oklahoma, Texas, New Mexico, Arizona, and California — and remains one of the most revered, beloved, and sought out historic roads in the world. Size: 4"x6" Paper: Heavy-weight cardstock Finish: Matte finish for a classic look and easy writing surface Back: Includes fascinating facts about the postcard scene --- 66-141 | © Christopher Arndt Images.