A waterpark in Kansas City, Kansas is about to open the world's TALLEST waterslide. It has TWO drops. The first one is 168 FEET, then your momentum takes you over a big bump, and you drop ANOTHER 50 feet.
The people testing it strapped a camera to a raft with sandbags inside, and posted the video on YouTube. (Search for "Verrückt POV at Schlitterbahn Kansas City." It starts at :20.)