Tiya Stelae, mysterious carved stones whose purpose continues to elude researchers.Ethiopia is known for its rich wealth of megalithic sites and well preserved prehistoric finds, but the 30-some stones located in the Tiya region are among the most remarkable. Each of the squat stone obelisks is carved with primitive, yet clear images of swords, geometric shapes, and figures. Despite a healthy amount of research at the site, no one has been able to determine the exact age or purpose of the stones,