Desc: China's Megatomb Revealed: Directed by Hugh Ballantyne, Kaige Chen, Ben Duncan, Ricky Ko, Nic Young. With Dong Chunguang, Liming Geng, Albert Yu-Min Lin, Geng Lishu. Unearthing the terrible secrets hidden in the tomb of China's first emperor. The Terracotta warriors are just the tip of the iceberg in a mausoleum the size of Manhattan, which has gone largely unexcavated.