Route 66 is as much an idea as it is a place. Since its creation in 1926, America's most famous highway has evolved from a 2,400-mile transportation corridor into a powerful symbol of nostalgia, travel, and the American road. Today, it functions as a kind of pilgrimage route, marked by neon signs, roadside attractions, and preserved motels, cafes, and gas stations. In this course, we will explore the history, cultural meaning, and enduring appeal of Route 66. Together, we will examine its origins, rise and decline, late-20th century revival, the role of nostalgia and car culture, preservation efforts, and the possible futures of this iconic highway.