This example displays a world map rendered with D3’s `geoNaturalEarth1` projection and `geoPath`, including graticule and country outlines. It loads GeoJSON data from the `visionscarto-world-atlas` package via `topojson-client`, then draws each country as a path. The visualization fetches the atlas asynchronously and re-renders once data arrives, with the SVG sized to the full viewport.