Flag of Chicago
It has five horizontal bands. The first, third and last are white and the second and fourth are light blue. There are four stars in the middle in which each represents an important event in the city's history.
In a review by the North American Vexillological Association of 150 American city flags, the Chicago city flag was ranked second best with a rating of 9.03 out of 10, behind only the flag of Washington, D.C.