Review about The Terracotta Army
The attached museum may be no great shakes, but the warriors are truly impressive. There's a great story of the backpacker who camouflaged himself and jumped into the pit, and it took guards two hours to find him.
Imagine being buried with that lot! Almost certainly there are numerous other 'pits' nearby which have yet to be discovered - and the sight that really sets the pulse racing is the huge mound you pass on the route from Xian, the actual tomb of the emperor these soldiers are guarding. It's never been excavated, and they say that thousands of workers were buried alive inside it before being walled up.