This example renders an interactive world map using SVG, with countries shown in brown and the globe’s sphere in light blue. It loads geographic data from the world-atlas TopoJSON file and converts it to GeoJSON via the `feature` method. The map uses `d3.geoEquirectangular` for projection and `d3.geoPath` to generate the paths. Hovering highlights countries by changing their fill color through CSS, while D3 v5 and TopoJSON handle the data binding and rendering.