The 887 Easter Island statues, called Moai, have dotted the Chilean Polynesian island since 1250 C.E. At 82-tons, the tallest of them reaches an impressive 33-feet high. A large grouping is located on the Rano Raraku quarry, but several hundred Maoi dot the island's perimeter. Built by the native Polynesian Rapa Nui people, many of the statues were topped during times of civil unrest in the 1700s. According to researcher Martin Gray, "To the people who erected and used them, they were actual repositories of sacred spirit. Carved stone and wooden objects in ancient Polynesian religions, when properly fashioned and ritually prepared, were believed to be charged by a magical spiritual essence called mana."