Hi. I hope this is the right place to ask this and I hope it's not that much stupid. In school we have been told that the reason we see objects is rays of light reflected from that object received by our eyes. Now if I look at a specific part of a building from above, below or exactly the front, I am still able to see a target point in that building. Does this mean that from every pixel(I mean smallest possible visible part) of the building light is reflected to every possible direction so no matter where I'm standing (Up until I am in direct path of rays) I can still see that part? If so, how come these rays don't collide?! I am not a physics student, just curious, so I hope this question is not too boring. Link to a fool-proof article would be helpful too! Thanks a million in advanced.