Goliath at RCDB. Goliath is a steel Hyper Coaster located at the Six Flags Over Georgia amusement park in Cobb County, Georgia, United States. Designed by Bolliger & Mabillard it reaches a maximum height of 200 feet (61 m), a top speed of 70 mph (110 km/h), and has approximately 4,480 feet (1,370 m) of track.