Elysium Mons

This image shows a cross section of Elysium Mons, including the entire summit caldera of the Martian volcano. It’s taller than Mt. Everest, standing about 12.6 km (41,000 ft) above its base and about 14.1 km (46,000 ft) above the Martian datum. It’s only the third tallest Martian mountain in terms of relief and the fourth highest in elevation.

Image Credit: NASA