The image is a photograph of a sign for the historic route 66 in Illinois. The sign is rectangular in shape and has a green background with white text. The text reads "Illinois US 66 Historic Route Begins" in large, bold letters. Below the text, there is an illustration of a highway sign with the number 66 in the center. The top of the sign has the words "Oak Park, Chicago, Indiana" in smaller, white letters. On the left side of the image, there are trees and a building with a balcony.