The Great Barrier Reef and Grand Canyon are among the best known of almost 200 natural sites on the UNESCO World Heritage List.
원문출처 : http://edition.cnn.com/2015/02/02/travel/gallery/unesco-global-treasures-natural/index.html?eref=edition
원문출처 : http://edition.cnn.com/2015/02/02/travel/gallery/unesco-global-treasures-natural/index.html?eref=edition