The document describes the process of modeling a 3D cityscape in steps. It begins with setting preferences and initially designing the bottom layer to establish size. Basic shapes are added to represent building placement and shape. More complex shapes and designs are added, like walls surrounding a park. Details are added to structures like a fast food parlor and outdoor dining area. Multiple structures are created, including a multi-story car park with ramps and walls. Other buildings follow like a burger shop, park with basketball courts, playground, and apartment blocks with windows. Texture and materials are added and the map is populated with more buildings until half is complete.