Infromation about World Heritage listing:

http://www.abc.net.au/environment/articles/2014/02/07/3939538.htm

 

logo of world Heritage listinging:

whc.unesco.org

 

video about World Heritage listing:

http://www.abc.net.au/btn/story/s3958277.htm

 

all images from:

https://simple.wikipedia.org/wiki/Kakadu_National_Park#Landforms

https://en.wikipedia.org/wiki/Grand_Canyon

http://whc.unesco.org/en/list/147/gallery/

http://whc.unesco.org/en/list/75/gallery/

 

infromation about Kakadu National Park

https://simple.wikipedia.org/wiki/Kakadu_National_Park#Landforms

http://whc.unesco.org/en/list/147

 

information about Grand Canyon National Park

http://whc.unesco.org/en/list/75

https://en.wikipedia.org/wiki/Grand_Canyon