This Easter Island documentary explains how the ancient moai statues were constructed also revealing the newest engineering theories on the famous 900 statues and other archaeological sites. Early Rapa Nui inhabitants during the 10th-16th centuries built them and created an industrious civilization and culture as evidenced by university professors and archaeologists. The moai are carved human figures with oversize heads, often resting on massive rock altars called ahus. Ahu Tongariki has the largest group of upright moai. Easter Island is a Chilean territory, is a remote volcanic island in Polynesia.