"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.
We search the world for truth; we cull the good, the pure, the beautiful, from all old flower fields of the soul; and, weary seekers of the best, we come back laden from our quest, to find that all the sages said is in the book our mothers read.