Mountains occur on every continent of earth and also beneath the oceans. In fact, some of the highest mountains are at the bottom of the sea. Mountains cover one-fifth of the earth's land surface. Over half of the world's fresh water originates in mountains, and all the world's major rivers are fed from mountain sources. As you may know, Mount Everest is the highest mountain on earth. However, the highest known mountain in the Solar System is in fact on Mars. It is over 69,000 ft high which is twice as high as Everest!
Why do people climb a mountain? Because it's there!!
Please do click on the images to enlarge them.