Men don't and can't live by exchanging articles, but by producing them. They don't live by trade, but by work. Give up that foolish and vain title of Trades Unions and take that of laborers Unions.
"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.