The vast majority of objects out there in the universe are pretty big…moons, planets, stars, galaxies, so it can be difficult sometimes to get your head round their actual size.
With the huge continent of North America dwarfed by Jupiter’s storms, the universe seems an even larger place. In the other direction, Mars looks so much more human-scaled.
This is how North America looks like in relation to Jupiter, one of the giant planets:

But this is what it lookslike on Mars:

Read more about it here:
http://astronomycentral.co.uk/astronomy-the-size-of-stuff/