I thought Expedition Everest was also an expensive ride to build including all the theming, but not exactly sure how much it was
I know it was around $100M which I think was just the ride itself and all the theming around it as the rest of Asia area of the park had been there since 1999. I think it was also in the Guinness World Records in 2011 as the most expensive rollercoaster in the world aswell.
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