(FILES) This photo taken on February 6, 2007 shows an army of Terracotta Warriors on display at Pit 1 at the heavily-travelled Terracotta Warrior Museum on the outskirts of Xian, in northwest China's Shaanxi province. China said on June 10, 2009 it was all set to start excavating for more clay figures at the famed terracotta army site in a bid to unravel the mysteries that still surround the army of warriors, one of the greatest archaeological finds of modern times and listed as a World Heritage Site in 1987. Tourists will still be allowed into the pit while the excavation goes on, with the work due to begin on June 13 in the site's largest pit, still believed to be hiding around 5,000 terracotta figures. AFP PHOTO / FILES / Frederic J. BROWN / AFP PHOTO / FILES AFP / FREDERIC J. BROWN