Unfortunately, the problem with that method is the dividing line between mountains. It can be confusing depending on where the base starts. Because of that, a better measurement to use is called a “topographic prominence” (basically how much the mountain sticks out from the surrounding landscape). So, while Mount Kilimanjaro’s peak is not as far away from sea level as any number of peaks in the Himalayas, the difference between its base and its peak is much greater. With that in mind, these are the 25 tallest mountains in the world. Mount Everest, whose Tibetan name Qomolangma, means “Goddess the Third,” is located in the Mahalangur section of the Himalayas. The international border between China and Nepal runs across the precise summit point.