A futuristic city shaped like a turtle. Each pattern on the shell represents districts or dome cities. Ring-shaped roads and rails follow the lines of the shell. Power plants and docks are located at the base of the neck and legs. A main street runs along the turtle's spine. Small points of light on the roads represent the flow of traffic. Tiny human figures and trees are placed sparingly. The surface of the turtle has subtle textures of cracks, moss, and wear. Copperplate engraving with watercolor. The background is outer space with a meteor shower. Nanometer-sized mechanical and functional structures, utilizing molecular-level movements and reactions, are used in AI robots that have visible retinas. Muscles and joints of the hands and feet are also visible. Inside a finely woven spherical structure is a futuristic city. The futuristic city is silver, gold, blue, and gray.