This example displays a polished world map with country boundaries, graticules, and a sphere outline rendered as an SVG using React. It loads geographic data from the World Atlas TopoJSON via `d3.json` and `topojson.feature`/`mesh` to extract land polygons and interior borders. The map is projected with `d3.geoNaturalEarth1` and drawn using `d3.geoPath`, while `d3.geoGraticule` generates the grid lines. Land areas are filled teal, interiors stroked in a lighter tone, and the sphere and graticules use neutral grays for a clean visual style.