Oblivion is a steel roller coaster located at Alton Towers in Staffordshire, England. The prototype Dive Coaster model from Bolliger & Mabillard opened to the public on 14 March 1998 and was marketed as the "world's first vertical drop roller coaster". With a maximum speed of 68 mph (109.4 km/h), it is the third fastest roller coaster in the UK, behind The Big One at Blackpool Pleasure Beach and Stealth at Thorpe Park.