"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.
My grandmother was a kind of Scarsdale, New York, society woman, best known in her day as the author of the 1959 book 'Growing Your Own Way: An Informal Guide for Teen-Agers' - this despite being a person whose parenting style made Joan Crawford's wire hangers look like pool noodles.
