Buttressed limestone cathedral: a coursed ashlar nave with eight lit stained glass lancets and a tracery rose over the arched west door, a tiled nave roof, and a crossing tower with a crenellated belfry, a tiled spire on a gilded finial and a bronze bell swinging in the opening. Dimensions 12.92 x 23.70 x 23.51 m (X x Y x Z). Footprint origin at ground level; metre units, +Y up, +Z front. Named pivots: door at (-1.08, 0.6, 9.7); bell at (0, 13.4, -6.8). The stained glass and rose are emissive materials, not lights. The bell rings and the west door swings; the tracery is modelled as mullion bars rather than cut openings. Rigid node-transform clips open, close, bell-ring drive named nodes on their own pivots. No skinning and no skeleton. Hand painted palette of deep warm limestone, dark terracotta roofs, ochre render, near black walnut framing, russet oak, brass and city crimson and blue, with emissive flame and arcane crystal for the lit pieces. Procedural 1024 px base colour maps, no normal or metal roughness maps. Free 3D model for Unity, Godot, Unreal, three.js and Blender. No collision or navigation data.