My picture of the day Rain Vortex at the Jewel, Changi airport Singapore Share on Facebook Tweet on Twitter *My Picture of the day* - Rain Vortex at the Jewel, Changi airport Singapore. It is the world's tallest indoor waterfall, standing at 130 ft hight. ****** Dr.Surendra www.drsurendra.com *My Picture of the day* –Rain Vortex at the Jewel, Changi airport Singapore. It is the world’s tallest indoor waterfall, standing at 130 ft hight.******Dr.Surendrawww.drsurendra.comRain Vortex at the Jewel, Changi airport Singapore