The world's tallest artificial waterfall in Guiyang, China, 108 meters high. It is said that the electricity cost per hour is 800 yuan.
https://twitter.com/ruanyf/status/1266646409526120449
https://video.twimg.com/ext_tw_video/1266645874035187712/pu/vid/1264x720/M9cu27IrnkqE7bcM.mp4?tag=10