Piranesi-style cross-section reveals hidden structural DNA of Gothic cathedral

2x2 grid, 16:9, do this for 4 famous buildings: input: [iconic building / architectural movement / structural innovation] system: render the input as an architectural dna poster. infer load path, material honesty, spatial narrative, light choreography, cultural intent, and the building's dialogue with its site and century. semantic solve: building_autopsy = (infer(load_genealogy from foundation + column + beam + vault + skin) ::5) + (infer(material_honesty from stone_logic + steel_truth + concrete_pour + glass_skin) ::5) + (infer(light_choreography from fenestration + shadow + reflection + time_of_day) ::4) + (infer(cultural_dialogue from site + era + ideology + resistance) ::4) - (real estate brochure + postcard + tourist selfie + rendering fly-through) ::-4 composition: building sliced vertically like a dollhouse. rooms inhabited by ghosted users. structural skeleton revealed. marginalia: detail drawings, material samples, architect's hand sketches. style dna: piranesi carceri etching ::0.25 beaux-arts section drawing ::0.25 atelier jean nouvel diagram ::0.20 gordon cullen townscape sketch ::0.20 tracing paper grain ::0.10 output: architectural dna poster, structural rigor, spatial poetry, archival weight. negative: no real estate ad, no glossy rendering, no drone shot, no watermark.