Harley Quinn Spinsanity was one of Six Flags America’s most visually striking thrill rides, located in the Gotham City area. Opened in 2021, the pendulum-style attraction swung riders up to 15 stories in the air while spinning at high speeds—reaching up to 70 mph at the peak of each swing. Manufactured by Zamperla, it seated 40 riders who rotated counter-clockwise as the pendulum arced back and forth, creating intense sensations of weightlessness. The ride was themed to the chaotic DC villain Harley Quinn and stood out as one of the tallest and fastest pendulum rides in the region, adding a new level of thrill to the park’s lineup in its final years.