Sorry, Everest. Here's why we can't officially declare you the tallest mountain on Earth.
If you asked people what the tallest mountain on Earth is, most would respond with Mount Everest, which is on the border of Nepal and Tibet. Everest is the highest peak in the Himalayan mountain range, rising 8,849 meters (29,032 feet) above sea level. Everest is also commonly seen as one of the high points … Read more