This example presents a world map using an equal-area Natural Earth projection. The visualization renders a blue sphere and light green country polygons as SVG paths. It loads TopoJSON data from the world-atlas package, converting it to GeoJSON with the topojson `feature` function. D3’s `geoPath` and `geoNaturalEarth1` projection generate the map geometry, with CSS styling applied to distinguish the sphere and country boundaries.