Measuring by peak height above the sea level beginning with Mount Everest of all the top 5 highest mountains in the world would be in the Himalayas. The problem with doing that, however, is that the dividing line between a mountain with multiple peaks and separate mountains is not always clear.  Though some parts of the world, especially the most mountainous parts, have never been thoroughly mapped, it is unlikely that any mountains this high have been overlooked, because synthetic aperture radar can and has been used to measure elevations of most otherwise out of reach places>>>Here are the Highest Mountains In The World>>>>>