Explore Natural Sites

Welcome to IUCN World Heritage Outlook!

Explore the natural wonders of our world and learn more about their future conservation prospects. 

The IUCN World Heritage Outlook provides an independent assessment of the state of conservation of our natural heritage and its potential to be maintained in the future. It shows World Heritage sites have a role in demonstrating excellence and becoming leaders in nature conservation. Simply explore the map above or use the filtered search to discover more about the conservation outlook of natural World Heritage sites.


Facts and figures on natural World Heritage

There are 229 World Heritage sites with natural Outstanding Universal Value

  • 197 classified as natural sites
  • 32 mixed sites classified as both natural and cultural

Together, they account for 22% of all 1031 World Heritage properties

Natural and mixed World Heritage sites protect over 280 million hectares of land and sea and represent over 8% of the total area of all recorded protected areas.

Of all natural World Heritage sites, 108 are forest sites, 46 are marine sites and 15 are transboundary sites.

97 countries have an area designated as a natural or mixed World Heritage site.

  • 71 in Europe and North America
  • 70 in Asia and the Pacific
  • 41 in Africa
  • 41 in Latin America and the Caribbean
  • in Arab States

In 40 countries the extent of World Heritage sites is more than 10% of all protected areas.

To date, 18 natural and mixed World Heritage sites are on the List of World Heritage in Danger.