Impossible perspectives: anyone experience this?

Basically stuff like an Escher painting. Its interesting, though it does detract from the realism if that is what you are looking for.

For example last night I was standing on a ridge in a valley. There were mountains in the distance covered in trees, with the valley between me and them. When I looked down and followed the valley towards the cliffs, I noticed that there wasn't enough land between me and them for them to appear so far away.

Difficult to describe. Look out your window across the street, and imagine what look like huge cliffs where a house would be. They look far away, but if you tracked your eyes across the road and back to where you are standing there would only be a small distance between you and them, even though the transition is seamless.

Any experiences like this, do you enjoy it or treat it more as a "dream glitch?"