4. Sossusvlei Dunes, Namibia
Sossusvlei means “the gathering place of water” but you’ll need to bring your own if you don’t want to dehydrate at this, Namibia’s most outstanding attraction. The dunes have developed over millions of years, the result of material flowing from the Orange River into the Atlantic, carried north, and returned again to land by the surf. Climbing the dunes yields breathtaking views, including the Deadvlei, a ghostly expanse of dried, white clay punctuated by skeletons of ancient camelthorn trees.