Published on Friday, June 21, 2013 by Kathy McCabe Mount Etna, Sicily's towering and active volcano, has been deemed a World Heritage Site by the United Nations office UNESCO. The volcano joins 47 other World Heritage sites in Italy, including the Amalfi Coast and the Dolomite Mountains. The selection of World Heritage sites is based on 10 criteria such as "to bear a unique or at least exceptional testimony to a cu...