Expedition Everest — Legend of the Forbidden Mountain is a steel roller coaster built by Vekoma at Disney's Animal Kingdom theme park at the Walt Disney World Resort in Lake Buena Vista, Florida. The ride is themed around the Yeti hiding in Mount Everest. It is listed in the 2011 book of Guinness World Records as the most expensive roller coaster in the world. Including sets and extras, its total cost was reported to be US$100 million, following 6 years of planning and construction. It is the tallest of the artificial mountains at Walt Disney World and in the world. Contrary to popular belief, Expedition Everest is not Florida's tallest mountain. Expedition Everest stands at 199 feet tall (61 meters) while Walton County's Britton Hill is 345 feet tall (105 meters).