"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.
Would that there were an award for people who come to understand the concept of enough. Good enough. Successful enough. Thin enough. Rich enough. Socially responsible enough. When you have self-respect you have enough.
I think that it's always appropriate for Americans and for American foreign policy to make clear why we feel that self-government is most compatible with peace, the well-being of people, and human dignity.