Haha, if you think this is interesting, look up Ames Room, its the room kattou was talking about. Quite a famous experiment in perception psychology =)
That's so cool :3 I once saw a room that was cut on the diagonal so when you look at it straight, one person standing at one corner would look taller than the person on the opposite corner... if that made any sense @w@;
oooo i get it now from the 1rst perspective, u think that the woman is on the chair but from the 2nd view, u see that it isnt! (this was for those who were/are slow as me xP)