A set of murals featuring farmers conducting spring plowing in the ancient times at Mogao Grottoes has been revealed by the Dunhuang Research Academy on March 18, 2016. Mogao Grottoes, located in Dunhuang city, Northwest China's Gansu province, is a site with 492 temples and is honored as one of the most valuable discoveries of the 20th century. It has the world's largest and most abundant collection of Buddhist artwork. There are 735 caves accommodating 2,415 colored sculptures and 4.5 square meters of frescoes. [Photo/Chinanews.com]