Chinese archaeologists have discovered an unidentified cluster of tombs on the Pamirs Plateau, unveiling a new mystery on the crossroads of the ancient Silk Road. Eights tombs, each two meters in diameter, were arranged on a 100-meter-long and 50-meter-wide terrace, with lines of black stones and lines of white stones stretching alongside like rays, according to the archaeology team with the Chinese Academy of Social Sciences that found the tombs in Xinjiang's Taxkorgan Tajik Autonomous County, a border region neighboring Afghanistan and Pakistan, in October. "The tombs are peculiar. No similar ones had been detected before on the Pamirs Plateau,...