The flag of Madison, Wisconsin includes a sky blue background with a diagonal white stripe that goes from the bottom left corner to the top right which symbolizes Lake Mendota, Lake Monona and the isthmus between them. At the center of the flag is a black cross, which symbolizes the four lakes (Mendota, Monona, Kegonsa, and Waubesa), as well as the cross shape of the Wisconsin State Capitol.[1] The gold circle in the middle represents the Wisconsin State Capitol's dome.