"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 come more to Scotland than I ever used to, so I feel more connected to it, more part of the zeitgeist. You know when you realize you have a choice and I'm choosing my homeland. It's funny: when you get older these things creep up to you.