This example displays a polished world map with country boundaries, graticules, and a highlighted sphere, rendered as SVG in a React component. It uses d3-geo’s `geoNaturalEarth1` projection and `geoPath` to draw land features, graticules, and interior country borders, with data sourced from the World Atlas TopoJSON. The map is styled with distinct fills for land, sphere, and boundary strokes, offering a clean, visually refined geographic visualization.