It's so full of possibilities.
--Also, many areas would reasonably have empty areas.
Some Hypothetical 1E module said:10. Empty Room
This room is empty.
But you don't need the following in your published adventure:
But you don't need the following in your published adventure:

I must be looking at the art through rose colored glasses. I can't see it as other than cool. I was trying to come up with some comparison to some other book or illustration type, but could not. Maybe that is part of the appeal?

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.