Oblivion is a steel roller coaster located at Alton Towers in England. The ride opened as the world's first vertical drop roller coaster on 14 March 1998, amidst a large publicity campaign. It was the second in a long line of 'Secret Weapon' rollercoasters to have opened at Alton Towers. The ride has a height restriction of 55 inches (140 cm). With a maximum speed of 68 mph, it is the third fastest roller coaster in the UK, behind Stealth atThorpe Park and the Big One at Blackpool Pleasure Beach.