When drawing in one point perspective you make a horizontal line. A horizontal line is a line that has the objects going on top of, before it, and on the bottom. To make the building look like a building in one point perspective, you have to draw the lines to a vanishing point. A vanishing point is what makes the drawing a one point perspective drawing. In my birds eye city my favorite part of the city would be the buildings. They were one of the easiest parts to draw. I struggled with making the roads around the city.