The shifting sands on Hawaii's coast have revealed petroglyphs experts believe date back more than 400 years.
원문출처 : http://www.cnn.com/videos/us/2016/08/10/ancient-petroglyphs-unearthed-in-hawaii-orig-vstan-aa.cnn
원문출처 : http://www.cnn.com/videos/us/2016/08/10/ancient-petroglyphs-unearthed-in-hawaii-orig-vstan-aa.cnn