Multiple choice What is the name of the tallest mountain in the world? Mt. Kilamanjaro Mt. Everest Mt. McKinley the Matterhorn Reveal answer Fill a bubble to check yourself B Correct answer Explanation Mount Everest is the highest mountain above sea level, located in the Himalayas on the border of Nepal and China. It reaches an elevation of 29,031.7 feet (8,848.86 meters).