These are the stomach-churning pictures of the world’s tallest water slide. Towering over the landscape at a whopping 41 metres high, it is the equivalent of a 14-storey building. Insano has been listed in the Guinness Book of World Records and brave riders plummet down the slide at a nerve-shredding speed, reaching around 65 miles an hour. The plunge is so steep that although riders travel 41 metres, the whole ride takes just four or five seconds.