World's Steepest Roller-coaster Opens in Japan By Kaushik Saturday, July 09, 2011 Japan, News, Sports, Tech 1 comment Japan’s Fuji-Q Highland Amusement Park has unveiled its 14th Guinness world record-breaking ride – the Takabisha roller-coaster. Nestled at the foot of Mount Fuji, the new track is nearly two miles long and features seven major twists and a stomach-churn..