World heritage grotto printed with 3D tech

TAIYUAN - Supported by 3D printing technology, the movable replica of a cave in the Yungang Grottoes, a 1,500-year-old UNESCO World Heritage site, has passed experts' tests this week.

The Yungang Grottoes Research Institute in northern China's Shanxi province claimed it to be the world's largest movable grotto printed by 3D technology.

Weighing less than 5 metric tons, the full-size reproduced grotto is 14 meters long, 11 meters wide and nine meters high.