This is one of three vintage-looking travel posters released by SpaceX for some of Mars’s more exotic locales.
As the poster suggests, Olympus Mons is the highest peak in the solar system. It’s roughly three times taller than Mount Everest and, as with many of Mars’s peaks, it’s volcanic (whether it’s currently active or not is a subject of debate). The thing is positively massive—if you superimposed it on Earth, it would cover much of France.
