The mystery of Emperor QinShihuang's mausoleum

QinShihuang's mausoleum	QinShihuang's mausoleum

Emperor QinShihuang's mausoleum looks huge and magnificent. The tomb is a subterranean palace with a protective outer wall 6,210 meters in perimeter on the ground level. Within this area is an inner wall that surrounded the burial mound, located in the southern half of overall compound. Both of the walls have gates leading out in all four directions and watch towers. The burial mound was 115 meters high 2,200 years ago; it reduced to a height of 76 meters today due to the passage of time. With the emperor's tomb as the center, some 600 satellite pits and tombs have been found around within the area of 56.25 square kilometers. Since the discovery of the pits of the Terra-cotta Warriors and Horse in 1974, more and more satellite pits and tombs begin to be known and unearthed. 
Pit One, first discovered in 1974, measures 230 meters long and 62 meters wide, covering over 14,000 square meters. It contains more than 6,000 terracotta warriors, which, with their individual features and facial expressions, line up in battle-readiness, creating an awe-inspiring effect. The pit also buries a large number of chariots, weapons and other precious relics, of which some 10,000 metal weapons are unearthed. An unearthed bronze horse-driven chariot is the largest bronze ware ever found in the world.
Presently, Chinese scientists and archaeologists are carrying out a large-scale investigation of the tomb to get a general picture of it. The actual structure and position of the mausoleum are still a mystery despite the fact that several surveys having been conducted since the 1970s. And when and how the Emperor QinShihuang's mausoleum is constructed accurately remains to be a mystery.