"Ahu" are stone platforms on which many moai sit. There are 313 known ahu and 125 of these carry moai. The biggest, Ahu Tongariki is 220 m (720 ft), and had the most (15) and tallest moai.
The main business of religions is to purify, control, and restrain that excessive and exclusive taste for well-being which men acquire in times of equality.