This example displays a world map rendered with D3.js, showing countries as green polygons with black outlines against a dark blue sphere background. It uses the `d3.geoNaturalEarth1` projection and `d3.geoPath` to generate SVG paths from TopoJSON data loaded from the world-atlas dataset via `d3.json`. The `topojson.feature` API converts the TopoJSON topology into GeoJSON features, which are then bound to SVG path elements using D3 data joins.