Easter Island, Chile [Photo/China.org.cn]

Located some 3,700 kilometers off the west coast of Chile, the Easter Island is one of the most mysterious places in the world. It is also considered to be one of the world's most isolated islands and is widely famous for its 887 stone statues.

Standing or lying on the slopes or by the sea, the huge stone sculptures measure 7 to 10 meters (22.97-32.8 feet) in height and 30 to 90 tons in weight. They all look towards the sky, as if they are praying. No one knows who carved them or how they managed to get them here to the island. The weirdest thing is that when the scientists tried to use original stone tools to carve out the statuses, the tools cracked.