In this photo released by China's Xinhua News Agnecy, workers excavate the old tomb in Jiangning District of Nanjing, the capital of east China's Jiangsu Province, Friday, April 14, 2006. A 1,700-year old tomb belonging to the Six Dynasties (222-589) has been unearthed in Nanjing. The tomb is over 20 meters long, which is believed to be the longest among the discovered brick tombs in the Six Dynasties. According to archaeologists, the tomb owner should be a high-ranking noble of the Eastern Wu. (AP Photo/Xinhua)