Bajiao

Tibetan children play near Bajiao village in the Ganjia Grasslands on the outskirts of Xiahe, Gansu Province, China Thursday, Oct. 17, 2013. Bajiao village, known as Karnang in Tibetan, is an ancient village, which is believed to be roughly 2,000 years old and is surrounded by a 12-sided city wall.

Andy Wong/AP

Tibetan children play near Bajiao in the Ganjia Grasslands, Gansu province, China, on Thursday. Bajiao, known as Karnang in Tibetan, is believed to be about 2,000 years old and is surrounded by a 12-sided city wall.