"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.
Everything Sholom Aleichem talks about in his plays and his short stories is about people, family, man's relationship with his God, the breaking down of tradition.