Primeval Whirl in DinoLand U.S.A. in Animal Kingdom is one of Walt Disney World's most creative attractions. First, it is a basic small roller coasters that goes up, down, and turns a lot. But in addition, the cars spin. This creates a unique sensation. The spinning is pre-programmed. Sometimes, the spin stops in the middle. At other times it is a full spin. The car travels at a moderate rate of speed. Make sure you are ready for a roller coaster, plus spinning, before you ride Primeval Whirl. It is located at the back of Chester and Hester's Dino-Rama.