The stomach-churning attraction will be attached to what is itself the world's tallest roller coaster, Kingda Ka in Jackson, New Jersey. At the top - far higher than the 305ft Statue of Liberty - riders will be able to see the skyline of Philadelphia, which lies 52 miles away. Saw - The Ride, Thorpe Park, UK A favourite with bloodthirsty adrenaline seekers, Saw - The Ride opened at Thorpe Park in 2009. The attraction is based on the horror film franchise which spawned four movies and claims to be 'the world's most terrifying horror rollercoaster'. Riders are carried up to 100ft before being plummeted down towards sharp rotating blades below. Takabisha, Fuji-Q Highland Amusement Park, Japan Japan's Fuji-Q Highland Amusement Park laid claim to the title of steepest vertical drop of any ride in the world when it opened in July 2011. The stomach-flipping Takabisha ride - an attraction that includes seven major twists over 1000 metres of track and a nerve-jangling drop of 43 metres - features a 121° freefall. The 112-second attraction - which means 'dominant' in English - also accelerates to speeds of 100kmph. Riders experience weightlessness as they 'nosedive' down the sharp incline, before later being plunged into darkness. Terrifying: The Smiler at Alton Towers in the UK cost £18million and has entered the Guinness Book of Records for the ride with the most loops - with 14 The Smiler, Alton Towers, UK (pictured above) It's called The Smiler. But unless you're very, very brave, the chances of smiling when you come off it seem remote. Alton Towers's latest rollercoaster cost £18million and has entered the Guinness Book of Records for being the ride with the most loops - 14. It has drops of 98ft, reaches speeds of up to 52mph and was designed with the help of psychologists and scientists for maximum thrills. Tower of Terror II, Dreamworld, Australia Offers a fantastic view of the Gold Coast, if only you dare look down...riders of the recently re-launched Tower of Terror II are propelled backwards and up 100metres into the air. In the nerve-jangling drop back down, there are several seconds of weightlessness. Formula Rossa, Ferrari World, Abu Dhabi When it comes to speed, Formula Rossa, at Ferrari World in Abu Dhabi, claims to be the world's fastest rollercoaster. The Formula One-themed attraction sees goggle-wearing riders reach 240kmph in 4.9 seconds over the course of a 2km track. Turns can reach up to 70º, while heights peak at 52 metres. Thrill-seekers will experience a maximum acceleration G-Force of 1.7.