Some of you asked questions about looking up vanishing points but, in fact, looking down or aerial view type of perspective follow the same kind of method. Let’s say we have one point perspective (the scene may have more but this is just to focus on the main VP). The vertical lines drive the perspective and where to determine the VP location. See more in the text below. —————— Marina City, Chicago. This is an example of an aerial view drawing. My account has several examples that you can browse