Architecture, modern building, skyscraper, cityscape, urban planning, geometric shapes, lines, curves, angles, proportions, symmetry, asymmetry, spatial relationships, 3D modeling, perspective, vanishing points, atmospheric perspective, lighting, shading, textures, materials, glass, steel, concrete, wood, brick, stone, marble, reflections, refractions, shadows, depth cues, atmospheric effects, misty morning, warm sunlight, dramatic clouds, blue sky, urban landscape, construction equipment, cranes, scaffolding, urban planning, zoning regulations, building codes, structural integrity, load calculations, stress analysis, tension, compression, torque, trigonometry, calculus, geometry, algebra, spatial reasoning.