"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.
To see how Christ was prophesied and described therein, consider and mark, how that the kid or lamb must be with out spot or blemish and so was Christ only of all mankind, in the sight of God and of his law.