neoclassical building 3d model

Massive neoclassical museum, perfectly symmetrical front elevation, giant central dome, two secondary domes, monumental staircase, architectural blockout, clean structural forms, open window apertures only, no window frames, no glass, open door apertures only, white clay model, orthographic front view, blueprint reference, CAD style architecture, subdivision surface ready, quad topology, quad dominant mesh, manifold geometry, clean edge flow, evenly distributed polygons, retopology friendly, production ready mesh, hard surface architectural modeling, large readable forms, separate architectural sections, modular architecture, accurate proportions, pure geometry, no textures, no materials, no lighting, no shadows, isolated object, transparent background, Blender workflow, professional topology reference, quad based topology, subdivision friendly, CAD accuracy, edge loop based construction, architectural blueprint mesh, clean mesh generation, retopology ready