I've been to Niagara Falls more times than I can count, and it is ALWAYS simply incredible. I've stood by the falls for hours, until soaked by the spray. I've also been there when the smaller section (The American falls) was frozen.
The Pearl Waterfall, China. Pearl Shoal Waterfall is a waterfall located in Aba-Ngawa Tibetan and Qiang Autonomous Prefecture in northern Sichuan Province (China). The waterfall exists on one of the tributaries of the Bailong Jiang (White Dragon River).