So what does it take to make it on the revered UNESCO World Heritage Site list? Aside from having to “be of outstanding universal value,” a site must meet at least one of 10 additional criteria, ranging from representing a masterpiece of human creative genius, to containing superlative natural phenomena or areas of exceptional natural beauty and aesthetic importance.
It’s not an easy feat to get inscribed to this list, which is why its all the more upsetting when these precious sites become threatened and added to the “UNESCO World Heritage Sites in Danger” list.
Unfortunately, most of the threats are from humans, caused by poorly managed mass tourism and growing development. However, all is not lost. Several sites, such as Angkor Wat in Cambodia,The Giza Pyramids in Egypt, and the Old City of Dubrovnik in Croatia, have all spent time on the endangered list, but then were removed thanks to the action and success of preservation efforts.
Read more from source: 7 UNESCO World Heritage Sites you need to see before they disappear