The hunt for an emperor's face By Yang Feiyue | China Daily | Updated: 2026-05-22 06:29

https://www.chinadaily.com.cn/a/202605/22/WS6a0f8767a310d6866eb4a023.html Inside the Binyang Central Cave at the Longmen Grottoes in Central China's Henan province, a researcher from the Longmen Grottoes Research Institute holds a small 3D-printed fragment against a weathered stone wall. For a moment, nothing happens. Then the piece clicks into place, its curve fitting perfectly into a shallow groove carved 15 centuries ago.