A UNESCO advisory panel has recommended adding two ancient tumulus clusters in western Japan, including the country's largest keyhole-shaped mound named after an emperor, to the World Cultural Heritage list, a Japanese government official said Tuesday.Among the sites is the Emperor Nintoku mausoleum in Osaka Prefecture, officially called Daisen Kofun. It is one of the three largest mounded tombs in the world, together with the Mausoleum of the First Qin Emperor in China and the Great Pyramid of Giza in Egypt.Listing of the sites, collectively called Mozu-Furuichi tumulus clusters, is expect…READ FULL ARTICLE