The Riddle of Sleep
A campaign setting built for an Epic story that spans the globe and into the dreaming worlds of the gods themselves. A low-to-no-magic setting, where the heroes’ adventures actually change the rules – whether opening the world up to more magic, or shutting it down completely.
I actually think it’s a world of humans, with legends about elves and dwarves and that. The PCs might even meet these forgotten peoples, and maybe even entice them back into the setting.