From very early on in my childhood - four, five years old - I felt alien to the human race. I felt very comfortable with thinking I was from another planet, because I felt disconnected - I was very tall and skinny, and I didn't look like anybody else, I didn't even look like any member of my family.
"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.