Semonthong Waterfall, Lesotho, Africa Formed: Waterfalls form when a river erodes soft rock more quickly than hard rock and this may lead to the creation of a waterfall. The soft rock erodes more quickly, undercutting the hard rock.
Gullfoss Waterfall Gullfoss is a waterfall located in the canyon of Hvítá river in southwest Iceland. Gullfoss is one of the most popular tourist attractions in the country. The wide Hvítá rushes southward
Victoria Falls is one of the Seven Natural Wonders of the World. Statistically speaking, it is the largest waterfall in the world. This recognition comes from combining the height and width together to create the largest single sheet of flowing water.