In Norway there is a road alongside a 1050-foot Stigfossen waterfall that contains 11 hairpin turns at grades of up to 9 percent. If this wasn't enough to deter the lucid driver, each turn takes you higher and high up the mountain pass until you reach 2,790-feet. Also known as the "Troll's Way" by locals, this dangerous stretch of serpentine road is not one I suggest trying with.
