"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 have a friend that is a WWII buff, and we sat and talked a lot about stuff like the war and the reasons behind it, and you now it's all in the uniform. Once you're in it, it usually does all the work for you.
