What is stlouis flag?

The flag of St. Louis, Missouri, features a navy blue background with a stylized version of the Gateway Arch in silver in the center. The top half of the arch is filled with a red sunburst pattern and the bottom half with a solid blue pattern. The three fleur-de-lis, which are symbols of French heritage, are located in a triangular pattern in the top left corner. The flag was designed by Yale University professor and St. Louis resident Theodore Sizer in 1964 to help promote the city’s identity and spirit. It was officially adopted as the city’s flag on October 4, 1964.