The terracotta army was discovered in northwest China's Shaanxi Province in 1974. It's part of the mausoleum of Qinshihuang – known as China's first emperor. When the life-sized clay figures were unearthed, most of them were damaged or ruined either by natural factors like floods or by human activities. For nearly 50 years, experts have been working to restore the life-sized clay figures. The process of repairing a single piece usually takes months, or even years to complete. Lan Desheng has spe

In 1974, the first in an extensive collection of clay figures was discovered in Xi'an, China, leading to the discovery of an ancient tomb housing a number of artifacts. National Geographic Explorer Albert Lin gives us an exclusive look at the 8000 warriors that make up the Terracotta Army, and why they were created for the first Emperor of China 2000 years ago. China’s Megatomb: Secrets of the Terracotta Army, premieres Sunday 20th June at 8pm on National Geographic UK. | National Geographic UK