Sahara Desert
Think of the size of the United States: that is the size of the Sahara Desert, which comprises 3.5 million square miles. No wonder Westerners often say “Timbuktu” when they mean “the middle of nowhere.” Eleven nations lie at least partly in the desert. Large swaths are utterly desolate, though the Sahara supports 2 million people, not counting those who live along the Nile and Niger rivers. And the extremes! As hot as 136 degrees Fahrenheit and as cold as 22 degrees; supporting sand gazelles and ants, palm trees and grasses; fairly flat, rocky terrain and the wind-sculpted dunes that loom over it; the vast, shimmering sky and the way it makes a person look inconsequential.
Iguazu Falls
Shared by Brazil and Argentina, Iguazu Falls is one of the most imposing natural wonders in South America. The indigenous Guarani people called this “great waters” long before Alvar Núñez Cabeza de Vaca stumbled across it in 1541. The Iguazu River runs 745 miles along a smooth plateau, then reaches a series of faults that turn it into a semicircular thundering mass of mist. The falls are actually a group of 270 waterfalls with cliffs and islets. You can take a boat to the base of the falls and really feel the mist, or walk along two footbridges to revel in the panoramic view
Three Gorges
The scenic Three Gorges span 75 miles of the Yangtze River. The region is primarily known for its awe-inspiring beauty— a representation of the westernmost gorge is on the back on the 10-yuan note — but it is also historically and culturally important to China. It isn’t just the scenery that captures the imagination now, though. More than a million tourists have flocked to the surreally huge Three Gorges Dam in the first seven months of this year. The dam, the world’s largest hydropower project, has dramatically changed the scenery and life in the gorges.
Source: Bing.com