UNESCO World Heritage Site. Archived from the original on 9 November 2006. Retrieved 14 October 2006. ↑ Convention Concerning the Protection of World's Cultural and Natural Heritage Archived 4 July 2010 at the Wayback Machine. ↑ World Heritage List Archived 14 October 2013 at the Wayback Machine., UNESCO World Heritage Sites official sites. ↑ Sites in Germany and Italy bring to 19 the number of sites inscribed on the World Heritage List this year Archived 27 June 2013 at the Wayback Machine., UNESCO World Heritage Sites official sites. ↑ Monuments of Nubia-International Campaign to Save the Monuments of Nubia Archived 29 April 2009 at the Wayback Machine.