Learn how to make a three dimensional city from a sheet of paper. Start with a flat drawing of a city scape and a sharp X-acto knife. Cut along each vertical line of each window. Cut along each horizontal line of each window. Be very precise and do not cut past the end of the line. Cut out arches of doorways. Make incisions along horizontal lines of buildings. Cut along horizontal lines of stairs. Do not cut along any dotted lines. Once done cutting, begin folding. Fold along dotted lines. Crease the sheet of paper in the center where marked. Create the illusion of a 3D city using simple cutting and folding skills.