Kizil Caves contain 236 Buddhist rock-cut temples in Xinjiang near Tocharian kingdom of Kucha. Caves developed from 3rd to 8th centuries CE as Silk Road hub. Earliest caves carbon-dated to around 300 CE. Largest ancient Buddhist cave site in Xinjiang associated with Tocharian kingdom. Caves follow Sarvastivadin Hinayana Buddhism with some early Dharmagupta. Central pillar caves allow circumambulation around Buddha stupa niche. Murals depict Jatakas, Buddha sermons, Parinirvana scenes. Early art shows Gandharan and Iranian influences without Chinese elements. Pigments include lapis lazuli blue, vermilion reds, atacamite greens. Tocharian and Sanskrit inscriptions name rulers and donors. German expeditions removed many murals to Berlin in 1906-1914. Earliest caves like 118, 83, 84 show noble Tocharian donors in tunics and boots. Painter from Rome named Rumakama worked on Cave 212 murals. Styles evolve from refined orange-green Gandharan to bold Sasanian blue contrasts. Caves abandoned around 8th century after Tang influence. UNESCO site as part of Silk Roads network.