With 14 track inversions The Smiler Coaster at Alton Towers in England holds the world record.
The Smiler features two lift hills, the first being a conventional sloped lift hill and the second a vertical lift hill. The original plans showed a minimum of eight inversions in the outdoor section, including a unique intertwined cobra roll and batwing, a sea serpent roll and two diving loops.
A key feature of the ride is the large spider-like structure with a height of around 15 meters. Called ‘The Marmaliser,’ it has 5 legs, each with a distinct function to manipulate riders into smiling. The roller coaster itself is intertwined within the structure, which in turn interacts with the riders to enhance the experience.