"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.
So we see Edward as a young man on the road and he meets a giant and he brings the giant to a circus where he meets a Miss Calloway. He sees the woman of his dreams and I am the only one who knows who she is.