Mount Everest, located in the Himalayas on the border between Nepal and Tibet, is the highest peak in the world. It has long been a symbol of the ultimate challenge for mountaineers, with its extreme altitude and unpredictable weather conditions. Mauna Kea (4,207 m (13,802 ft) above sea level) is the world 's tallest mountain and volcano, rising about 10,203 m (33,474 ft) from the Pacific Ocean floor. In this article, we will explore the top 20 highest mountains in the world, from the towering peaks of the Himalayas to the rugged summits of the Karakoram Range. 1. Mount Everest At an astonishing height of 29,029 feet (8,848 meters), Mount Everest is the highest mountain in the world. Which is the highest mountain in the world? Mount Everest, the range of Himalayan mountains, is the highest mountain in the world with a height of approximately 8848 metres. Highest or tallest mountains in the world is an important topic for competitive exams.