Six Flags St. Louis

Six Flags St. Louis, originally known as Six Flags Over Mid-America, is an amusement park featuring characters and rides from many Warner Bros. films and TV shows such as Looney Tunes, DC Comics, and formerly Scooby-Doo. It is located in Eureka, Missouri, which is a suburb of St. Louis, Missouri. Owned and operated by Six Flags, the park opened on June 5, 1971, as the third of the company's three original theme parks. It is the only one of the original three Six Flags parks to be both owned and operated by Six Flags. The park was conceived by Six Flags founder Angus G. Wynne in the 1960s, although unlike the previous two Six Flags parks, it was designed by the Six Flags company itself rather than architect Randall Duell, who was preoccupied with designing AstroWorld at the time. Its layout consists of six themed areas, each of which contain numerous attractions, dining locations and live entertainment.

Source: Wikipedia