A worker cleans a brick from a tomb dated from the Eastern Han Dynasty (25-220) discovered in Chenghua District of Chengdu, capital of southwest China's Sichuan Province, Nov. 15, 2018. Altogether four tombs from the Eastern Han Dynasty (25-220) were discovered here in October this year, according to the Chengdu cultural relics and archeology research institute. (Xinhua/Liu Kun)