realistic city 3d model

Create a realistic 16km x 16km AAA-quality open-world 3D map with dense modern cities, detailed villages, railway stations, highways, bridges, parks, rivers, forests, mountains, industrial zones, farmland, lakes, and suburban areas fully spread across the environment. Use photorealistic buildings, realistic roads, sidewalks, rail tracks, street lights, terrain variation, vegetation, and believable infrastructure with proper environmental scale and detailed urban planning. Add realistic textures, weathered materials, cinematic lighting, atmospheric fog, natural terrain blending, shadows, and immersive environmental details similar to modern Unreal Engine 5 open-world games. Avoid low-poly assets, cube buildings, blurry textures, repeated structures, empty terrain, stylized visuals, placeholder geometry, melted environments, or cartoon appearance.