Bodhisattva holding up as lotus, right, and other sculptures of the Northern Wei Dynasty, 386-534 AD, are displayed in "Dunhuang: Buddhist Art at the Gateway of the Silk Road," at the China Institute, in New York, Tuesday, April 24, 2013. (AP Photo/Richard Drew)
A woman views a full scale replica cave from the 8th century that contains the Bodhisattva of the Mogao Caves, in "Dunhuang: Buddhist Art at the Gateway of the Silk Road," at the China Institute, in New York, Tuesday, April 24, 2013. (AP Photo/Richard Drew)
The central pillar of Mogao Cave 432, from the Western Wei Dynasty, 535-556 AD, is presented in "Dunhuang: Buddhist Art at the Gateway of the Silk Road," at the China Institute, in New York, Tuesday, April 24, 2013. (AP Photo/Richard Drew)
A woman looks at a silk banner with floral appliquets, left, and a preyer banner, displayed in "Dunhuang: Buddhist Art at the Gateway of the Silk Road," at the China Institute, in New York, Tuesday, April 24, 2013. (AP Photo/Richard Drew)
A handwritten Buddhist scripture, from the Tang Dynasty, 618-907 AD, is displayed in "Dunhuang: Buddhist Art at the Gateway of the Silk Road," at the China Institute, in New York, Tuesday, April 24, 2013. (AP Photo/Richard Drew)
A Tangut-Chinese bilingual dictionary, from the Western Xia Dynasty, 1038-1227 AD, is displayed in "Dunhuang: Buddhist Art at the Gateway of the Silk Road," at the China Institute, in New York, Tuesday, April 24, 2013. (AP Photo/Richard Drew)
The central pillar of Mogao Cave 432, from the Western Wei Dynasty, 535-556 AD, is presented in "Dunhuang: Buddhist Art at the Gateway of the Silk Road," at the China Institute, in New York, Tuesday, April 24, 2013. (AP Photo/Richard Drew)
The central pillar of Mogao Cave 432, from the Western Wei Dynasty, 535-556 AD, is presented in "Dunhuang: Buddhist Art at the Gateway of the Silk Road," at the China Institute, in New York, Tuesday, April 24, 2013. (AP Photo/Richard Drew)
A full scale replica cave from the 8th century that contains the Bodhisattva of the Mogao Caves is presented in "Dunhuang: Buddhist Art at the Gateway of the Silk Road," at the China Institute, in New York, Tuesday, April 24, 2013. (AP Photo/Richard Drew)
A fragment of a document on mathematics, written in Tibetan, from the Yuan Dynasty, 1271-1368 AD, is displayed in "Dunhuang: Buddhist Art at the Gateway of the Silk Road," at the China Institute, in New York, Tuesday, April 24, 2013. (AP Photo/Richard Drew)
A woman views a full scale replica cave from the 8th century that contains the Bodhisattva of the Mogao Caves, in "Dunhuang: Buddhist Art at the Gateway of the Silk Road," at the China Institute, in New York, Tuesday, April 24, 2013. (AP Photo/Richard Drew)
Decorative floor tiles, and "Celestial Music" from Mogao Cave 288, are displayed in "Dunhuang: Buddhist Art at the Gateway of the Silk Road," at the China Institute, in New York, Tuesday, April 24, 2013. (AP Photo/Richard Drew)