People aren't very big at all. But at least we're bigger than ants, cells, the X chromosome and all the empty space between particles. On the other hand, we get tiny awfully fast. Even dinky little Rhode Island looks huge in comparison to us. At least, until you keep scrolling out...
From quantum foam and the Planck length (that's itty bitty) to the scope of the entire measurable universe itself, this amazingly cool interactive graphic has it all.
But don't ask yourself what comes after the entire universe. That way lies madness. (Unless you're a college student, and it's 3:30 in the morning, and you may have had a few particularly strong adult beverages recently. That's the perfect time to wonder what comes after the entire universe.)
And just in case you'd ever wondered how big the world of Minecraft really is? It's just about Neptune, but nowhere near Jupiter.
The Scale of the Universe 2 [HTwins.net]