"The temples have been called caves, for in most cases they are cut into the mountains. Cave No. XVI, for example, is an excavation sixty-five feet each way, upheld by twenty pillars; alongside the central hall are sixteen monastic cells; a porticoed veranda adorns the front, and a sanctuary hides in the back. Every wall is covered with frescoes. In 1879 sixteen of the twenty-nine temples contained paintings; by 1910 the frescoes in ten of these sixteen had been destroyed by exposure, and those in the remaining six had been mutilated by inept attempts at restoration.21 Once these frescoes were brilliant with red, green, blue and purple pigments; nothing survives of the colors now except low-toned and blackened surfaces. Some of the paintings, thus obscured by time and ignorance, seem coarse and grotesque to us, who cannot read the Buddhist legends with Buddhist hearts; others are at once powerful and graceful, a revelation of the skill of craftsmen whose names perished long before their work."