Solar City Tower for Rio Olympics

http://inhabitat.com/solar-city-tower-for-rio-olympics-giant-energy-generating-waterfall/
http://www.hoax-slayer.com/solar-city-tower-2016-olympics.shtml
http://www.bustler.net/index.php/article/solar_city_tower_for_rio_olympics_2016/
http://www.gizmag.com/rio-solar-city-tower/15016/

Video
http://www.youtube.com/watch?v=XlkdLK1j5sI