Photo taken on Oct. 15, 2017 shows a rainbow across the sky in Hani and Yi Autonomous County of Ning'er, Pu'er City, southwest China's Yunnan Province.
File photo taken on Feb. 8, 2017 shows tourists watching the Palace Museum at Jingshan Park in Beijing, capital of China.
Aerial photo taken on Aug. 9, 2017 shows the feedback source cabin of the Five-hundred-meter Aperture Spherical Telescope (FAST) in Pingtang County, southwest China's Guizhou Province.
Visitors look at three models of China's new bullet train "Fuxing" at an exhibition highlighting China's achievements over the past five years in the Beijing Exhibition Hall, on Sept. 29, 2017.
