"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.
You wanna know what scares people? Success. When you don't make moves and when you don't climb up the ladder, everybody loves you because you're not competition.
Life is the acceptance of responsibilities or their evasion; it is a business of meeting obligations or avoiding them. To every man the choice is continually being offered, and by the manner of his choosing you may fairly measure him.