Diamondback is a steel roller coaster designed by Bolliger & Mabillard at Kings Island in Mason, Ohio, United States. The ride is located in Rivertown just behind International Street and the Eiffel Tower. When built in 2009, it was the first hyper coaster to feature a splashdown and the first Bolliger & Mabillard roller coaster at Kings Island. Diamondback was previously the biggest investment in Kings Island’s history at $22 million (ahead of The Crypt and Son of Beast, each of which cost $20 million) until surpassed in 2014 by Banshee, an investment of $24 million. The coaster has a 230 ft (70 m) lift hill with a 215 ft-drop, featuring 10 total drops and a top speed of about 80 mph (130 km/h).