SELECT Park FROM roller_coaster ORDER BY Speed DESC LIMIT 1
SELECT Park FROM roller_coaster ORDER BY Speed DESC LIMIT 1 <table_name> : roller_coaster col : Roller_Coaster_ID | Name | Park | Country_ID | Length | Height | Speed | Opened | Status row 1 : 1 | Boardwalk Bullet | Kemah Boardwalk | 1 | 3236 | 96 | 51.0 | August 31, 2007 | Operating row 2 : 2 | Dauling Dragon | Happy Valley | 1 | 3914 | 105 | 55.0 | 2012 | Operating row 3 : 3 | Hades 360 | Mt. Olympus | 1 | 4726 | 136 | 70.0 | May 14, 2005 | Operating row 4 : 4 | Ravine Flyer II | Waldameer | 2 | 2900 | 120 | 57.0 | May 17, 2008 | Operating row 5 : 5 | Twister | GrÃ¶na Lund | 2 | 1574 | 50 | 37.9 | 2011 | Operating row 6 : 6 | The Voyage | Holiday World | 3 | 6442 | 163 | 67.0 | May 6, 2006 | Operating
col : Park row 1 : Mt. Olympus