Colossus is a Ferris wheel located at Six Flags St. Louis in Eureka, Missouri, USA. At 180 feet tall, Colossus is currently the largest ferris wheel in a United States theme park. (The largest US wheel is The Texas Star, at the Texas State Fair.) Colossus currently stands where the Pet-A-Pet petting zoo once was; the zoo was removed in 1985 to make more room for the 1986 addition of Colossus.
- Location: 1904 World's Fair
- Manufactor: Carousel Holland B.V.
- Type: Flat-Ferris Wheel
- Year Introduced: 1986
- Duration: 15 Minutes
- Height: 180 Feet
- Top Speed: 10 MPH
- Max Capacity: 320 People
- Visibility: 20 Miles
- Wheel Diameter: 165 Feet
- Weight: 180 Tons
