"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 sort of feel like cindy crawford's new husband on their wedding night. I know what's expected of me. I'm just not sure i've got the ability to make it interesting.