This visualization displays a world map with countries rendered as individual SVG paths, using a blue sphere backdrop and white country shapes with green strokes. Countries highlight in yellow on hover. The map is built with React and D3 v5, using `d3.geoEquirectangular` for projection, `d3.geoPath` for path generation, and TopoJSON’s `feature` method to convert world-atlas data (countries-110m.json) into GeoJSON. The SVG is populated dynamically via `selectAll` and `enter` data joins.