Six Flags Great America is a large U.S. theme park located in Gurnee, Illinois, which opened in 1976 as Marriott's Great America. Six Flags, Inc purchased the park from the Marriott Corporation in 1984 making it the seventh park in the chain. Today, the park boasts eight themed sections, a 13-acre water park, two specially themed children's areas, and various other forms of entertainment Reference |