The Maijishan Grottoes are a series of caves, 194 in total,
cut in the side of the hill of Majishan in Tianshui, China. The
contain over 7,200 Buddhist sculptures with over 1,000 square
meters of murals. Construction began around the end of the 4th
century cutting small caves into the mountain of purplish red sandstone. Although the region has fallen victim to many earthquakes the caves remain intact, all excavated on
the cliff face some 30 to 80 meters above
ground. The video below is a short tour of the mountain.