Tall room, dark ceiling

How would I make it so that the ceiling of a tall room fades to black and you cant really see the top because the ceiling is so high?

I would try it with spot light, directed onto the flor, scaled this way to light flor and partly walls.
Never did something like that, though.

Yeah… just don’t light it up:p.
But you could also use mist, in some cases. Like if you were looking straight up.