Route 66 is the main US road. It personifies freedom and American car culture.

This road originally ran from Chicago, Illinois, through Missouri, Kansas, Oklahoma, Texas, New Mexico, Arizona, and California, before ending at Los Angeles for a total of 3,940 km.

Over the years, U.S. Route 66 received many nicknames. Right after Route 66 was commissioned, it was known as The Great Diagonal Way because a large section of the highway (Chicago to Oklahoma City) ran diagonally, unlike the other highways. Later, Route 66 was advertised as The Main Street of America by the US Highway 66 Association to promote the highway.The title had also been claimed by supporters of U.S. Route 40, but the Route 66 group was more successful. In the John Steinbeck novel The Grapes of Wrath, the highway is called The Mother Road. The title continues to be applied to the highway. Lastly, Route 66 was unofficially named The Will Rogers Highway by the U.S. Highway 66 Association in 1952.