The world’s highest man-made waterfall on a 121-metre-tall skyscraper went viral on Chinese social media.br br The spectacular video, shot in Guiyang City in southwestern Guizhou Province on July 20, shows the 108-metre-high man-made waterfall gushing down the side of a hotel building.br br According to reports, the world’s highest man-made waterfall is only opened for domestic or international events for around 20 minutes.br br The water is recycled from an underground storage system.