It's one of the greatest artworks in the world, and now Chinese archaeologists and artists are using 3D printing to make a perfect copy of the Yungang Buddhist Grottoes. 'West Empress Chamber', the number 3 and the largest cave of Yungang Grottoes in northern China, have been meticulously re-created using specially developed 3D printers and state-of-the-art scanning technology. ... The original 'West Empress Chamber' was carved between the 5th and 6th century during the Northern Wei Dynasty - when the religion first flourished in China. The full-size replica is enormous, measuring 17.9 metres (59 feet) in length, 13.6 metres (45...