The document discusses several geographical features including Mount Everest as the highest mountain in the world at 8,844 meters, the Atacama Desert as the driest desert covering over 180,000 square kilometers between northern Chile and Peru, the River Nile as the longest river in the world at 6,671 km flowing from Uganda to the Mediterranean Sea, and Iguazu waterfalls consisting of 275 jumps that are about 80 meters high.