"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.
Strange - is it not? That of the myriads who Before us passed the door of Darkness through, Not one returns to tell us of the road Which to discover we must travel too.