"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.
It was also my idea that the advisory committees of the Academy should replace the legal committees of the German Reichstag, which was gradually fading into the background in the Reich.