Pinnacles of sandstone among orange dunes of the Karnasai Valley, Chad -- George Steinmetz/Corbis
comments,
- It\s not easy to reach this remote corner of the world, but if you\re hoping to see this view…""Getting here is just the beginning
- This is just a small part of a desert so large it could almost cover the United States.""That\s a whole lot of sand
- The people of this country speak more than 100 different languages and dialects.""They make up one of the most diverse populations on this vast continent
- This area\s climate makes it too forbidding for many living things to take up residence here.""A prehistoric art form tells us this wasn\t always so
