A polished world map visualizes country boundaries and graticules using the Natural Earth projection. Rendered with React and SVG, it loads World Atlas TopoJSON data and converts it to GeoJSON via `topojson.feature` and `topojson.mesh`. The map uses `d3.geoNaturalEarth1` and `d3.geoPath` to draw land, interiors, and grid lines, with custom CSS styling for the sphere, landmasses, and stroke colors.