Cattedrale di San Lorenzo in Genoa,...

Cattedrale di San Lorenzo in Genoa, Italy. Generate the complete cathedral, not just the facade. Include the full exterior structure. Black and white striped marble facade with alternating dark and light horizontal bands. Three arched entrances on the front. Central window above the main entrance. Two bell towers on the front with slight differences in height and design. Gothic and Romanesque architecture. Accurate proportions based on the real building. Include the full length of the cathedral, side walls, roof, and rear section. No fantasy elements. No simplifications. Prioritize accuracy over style. Prioritize realistic duplication of the Cattedrale di San Lorenzo.