The 17-story "Verruckt" at the Schlitterbahn Waterpark in Kansas City is even taller than Niagara Falls.
The slide's name translates to "insane" in German.
The slide is just over 168-feet tall and riders will have to climb 264 steps to get to the top.
The ride can reach speeds of up to 65 miles-per-hour.
The official launch date of the water slide was delayed three times as it underwent more testing and rebuilding.
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