The Maijishan Grottoes are a series of 194 caves cut in the side of the hill of Majishan in Tianshui, Gansu province, Northwest China. Inside the caves are clay statues and murals. Construction of Maijishan Grottoes began in 384 AD, the first year of Late Qin era (384 AD- 417 AD), while the following 1600 years saw its continual expansion and renovation.[Photo/CFP]