One of the oldest temples of fire in Persian civilization, King Solomon in the Old Testament reportedly hid treasures in this volcanic sulfur lake. Archaeologists later found Mongol-decorated king-time murals in the glazed tiles here. It can be seen that the Mongolians after conquering this place hope to gain legitimacy by rebuilding the connection with the ancient Persian Empire. Uh, it's a bit like Kangxi giving Hongwu Emperor a pillar of incense in the Ming Xiaoling Mausoleum in Nanjing, or sealing a grand official of Confucius' descendants