An archaeologist works at the No. 3 Horse and Chariot Pit, one of a cluster of tombs belonging to noble families of the Zheng State, a vassal state during the Spring and Autumn (770-476 B.C) and Warring States periods (475-221 B.C), near the city of Xinzheng in central China's Henan Province, Nov. 13, 2017.

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Since February, four chariots and 122 horse skeletons have been found from the 2,400-year-old pit, the largest of the three within the cluster that have been excavated so far.

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Xinhua Photo/Zhu Xiang

An archaeologist works at the No. 3 Horse and Chariot Pit, one of a cluster of tombs belonging to noble families of the Zheng State, a vassal state during the Spring and Autumn (770-476 B.C) and Warring States periods (475-221 B.C), near the city of Xinzheng in central China's Henan Province, Nov. 13, 2017.

Xinhua Photo/Zhu Xiang

Since February, four chariots and 122 horse skeletons have been found from the 2,400-year-old pit, the largest of the three within the cluster that have been excavated so far.

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang

Xinhua Photo/Zhu Xiang