After years of preparation, experts began the restoration of the Dazu Rock Carvings on June 29, 2019. In southwest China's Chongqing Municipality, the carvings date back to 9 A.C. and are indicative of the high level of Chinese craftsmanship at the time. /VCG photo

The Dazu Rock Carvings have the world's largest sleeping Buddha, and the site was listed as a World Cultural Relic in 1999. The 31-meter-long Buddha lies on its right side with a peaceful expression. /VCG photo

Exposed to open environment, the carvings suffer from severe damages from wind, rain and other weather factors. Experts have applied the latest technologies to the restoration work. The entire process could last up to 10 years. /VCG photo