Multiple choice general knowledge science & technology Where is the largest mountain in the solar system? Earth (Mount Everest) Jupiter (Mount Callisto) Mars (Olympus Mons) None of the above Reveal answer Fill a bubble to check yourself C Correct answer Explanation Olympus Mons on Mars is the largest mountain in the solar system, standing about 22 km (13.6 miles) high, nearly three times the height of Mount Everest. It is a massive shield volcano.