Modem archaeological scientists and engineers try and recreate and decipher the mystery of Easter Island's Moai statues by experimenting with archaic engineering methods and mysterious practices. Curved from stone, the human figures have over-sized heads, often resting on massive rock platforms called ahus, partially buried underground. 1,000 statues exist on the island, 30 feet tall, weighing a colossal 75 tons, scattered about the barren landscape in the mountains and close to the ocean. Society and tradition was tribal and primitive, with black magic priests and chieftains writing strange hieroglyphic languages known as rongorongo. Not unlike Europe's Stonehenge, this civilization constructed and moved these monolithic sculptures without present-day tools and equipment.