Only 1.1 billion Chinese Yuan to create. It measures 1,300 ft wide and is designed to help provide water during emergencies.
Located at Kunming in Yunnan province, China, this waterfall took 3 years to build.
This achievement in engineering has practical uses as 60% of the country’s underground water sources are polluted.
It will help during droughts and water shortages.
http://interestingengineering.com/china-reveals-latest-man-made-waterfall/