"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.
The Japanese have a wonderful sense of design and a refinement in their art. They try to produce beautiful paintings with the minimum number of strokes.
Increased awareness and education could be a great help toward improving spending and saving habits and increasing participation and contribution levels to retirement plans.