To be in a situation where you have no rights whatsoever is something I wish everybody could experience. People's attitudes would change. It would be a better place.
"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.