The World Heritage List includes 851 properties forming part of the cultural and natural heritage which the World Heritage Committee considers as having outstanding universal value. These include 660 cultural heritages, 166 natural heritages, and 25 mixed properties in 141 States Parties.

Definition of the Cultural and Natural Heritage:
Cultural Heritage:
For the purposes of this Convention, the following shall be considered as "cultural heritage":
monuments: architectural works, works of monumental sculpture and painting, elements or structures of an archaeological nature, inscriptions, cave dwellings and combinations of features, which are of outstanding universal value from the point of view of history, art or science;
groups of buildings: groups of separate or connected buildings which, because of their architecture, their homogeneity or their place in the landscape, are of outstanding universal value from the point of view of history, art or science;
sites: works of man or the combined works of nature and man, and areas including archaeological sites which are of outstanding universal value from the historical, aesthetic, ethnological or anthropological point of view.

Natural Heritage:
For the purposes of this Convention, the following shall be considered as "natural heritage":
natural features consisting of physical and biological formations or groups of such formations, which are of outstanding universal value from the aesthetic or scientific point of view;
geological and physiographical formations and precisely delineated areas which constitute the habitat of threatened species of animals and plants of outstanding universal value from the point of view of science or conservation;
natural sites or precisely delineated natural areas of outstanding universal value from the point of view of science, conservation or natural beauty.