Visitors From Space: 11 Fascinating Impact Craters on Earth
Impact craters are formed when a meteoroid, asteroid or comet crashes into a planet or a moon. All the inner bodies in our solar system have been heavily bombarded by meteoroids throughout their history. This bombardment is clearly visible on the surfaces of the Moon, Mars and Mercury for example....
The 17 Greatest Waterfalls in the World
10 Most Amazing Desert Landscapes on Earth
14 Incredible Sea Arches around the World
18 Most Dramatic Sea Cliffs in the World
23 Incredible Natural Rock Formations
10 Most Famous Big Game Safari Destinations
10 Most Important Wetlands in the World
