Terracotta Army - Ten Amazing Facts - as part of the travel series by GeoBeats. 10 - An army of 8000 clay soldiers to accompany Emperor Qin in afterlife. 9 - Sculptures are over 2200 years old. 8 - Discovered by local farmers while digging for water. 7 - Each face is unique. 6 - Their height and uniform also varies by rank. 5 - Over 650 horses are part of the army. 4 - It is believed soldiers held real weapons. 3 - Over 700,000 workers were employed for construction. 2 - Experts suggest that emperor's tomb contains simulated rivers. 1 - But that tomb has not been dug yet.