This example displays a world map with country boundaries, graticules, and interior borders rendered as SVG paths. The map uses a Natural Earth projection via `d3.geoNaturalEarth1` and draws geographic features with `d3.geoPath`. Data comes from the World Atlas TopoJSON, processed through `feature` and `mesh` from the TopoJSON library. React manages the component structure, while CSS styling defines the land, sphere, graticule, and interior stroke colors.