The Terracotta Army was discovered in March 1974 by local farmers drilling a water well to the east of Mount Lishan.
Construction of this began in 246 BC and is believed to have taken 700,000 workers and craftsmen 38 years to complete. Qin Shi Huangdi was kept inside the complex upon his end in 210 BC.
In July 2007 it was determined, using remote sensing technology, that it contains a 90-foot tall building built above, with four stepped walls, each having nine steps.
Video from the Terracotta Army gives general view of the spot and details on the statues.
Source: 1 & 2
Hotels With A Difference
What would you do with your old PC!
Sep 13, 2007
The Terracotta Army was kept with the Emperor of Qin (Qin Shi Huangdi) in 210-209 BC (his reign over Qin was from 247 BC to 221 BC, from 221 BC till 210 BC). Their purpose was to help rule another empire with Shi Huangdi in the afterlife. Consequently, they are also sometimes referred to as "Qin's Armies".