Top 10 sites

1. Zhaoguodong cave site, Gui'an New Area, Guizhou, 12,000 to 45,000 years old

2. Jingtoushan shell mound site, Yuyao, Zhejiang, 7,800 to 8,300 years old

3. Shuanghuaishu heritage site, Gongyi, Henan, 5,300 years old

4. Shizhuang heritage site, Zhoukou, Henan, 2000 BC to 1700 BC

5. Xuyang graveyard site, Yichuan county, Luoyang, Henan, eastern Zhou Dynasty (770-256 BC)

6. Sangsdar Lungmgo graveyard site, Zanda county, Ngari prefecture, Tibet, 4th century BC to 7th century AD

7. No 2 pit of Tushan Tomb, Xuzhou, Jiangsu, Eastern Han Dynasty (25-220)

8. Shaolingyuan tombs site, Xi'an, Shaanxi, Sixteen Kingdoms period (304-439)

9. Reshui graveyard site, Dulan county, Haixi Mongolian-Tibetan autonomous prefecture, Qinghai, mid-8th century

10. Mopancun city ruins, Tumen, Jilin, early 13th century