59. The Thamud were highly skilful in rock-carving, and made huge mansions by carving the mountains, as we have mentioned earlier see (n. 57 )above. In this regard the works of the Thamud resemble the rock-carvings in the Ajanta and Ellora caves in India and several other places. A few buildings erected by the Thamud are still intact in Mada'in Salih and speak of their tremendous skills in civil engineering and architecture.