Photo taken on Aug. 16, 2012 shows the cloud sea scenery over Taizi Mountain in Linxia Hui Autonomous Prefecture, northwest China's Gansu Province. (Xinhua/Zhu Xulong)

Photo taken on Aug. 16, 2012 shows the cloud sea scenery over Taizi Mountain in Linxia Hui Autonomous Prefecture, northwest China's Gansu Province. (Xinhua/Zhu Xulong)

Photo taken on Aug. 16, 2012 shows the cloud sea scenery over Taizi Mountain in Linxia Hui Autonomous Prefecture, northwest China's Gansu Province. (Xinhua/Zhu Xulong)

Source: Xinhua