He pointed towards the outside of the room
I'm wondering if that's a grammatically correct sentence. It sounds a bit off, but after analysing it a bit, there doesn't seem to be anything wrong.
He pointed towards the mountains.
That sounds fairly well and there doesn't seem to be any problems. "The mountains" is a location, and "the outside of the room" is also a location, yet the first example sounds slightly wrong for some reason, but I can't see which part is wrong.