"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.
I was taught when I was young that if people would only love one another, all would be well with the world. This seemed simple and very nice; but I found when I tried to put it in practice not only that other people were seldom lovable, but that I was not very lovable myself.