This example displays an interactive world map using a natural Earth projection, with countries rendered as SVG paths and a hover effect that changes their fill color. The visualization loads geographic data from the world-atlas TopoJSON and TSV files, then projects it using D3’s `geoNaturalEarth1` and `geoPath`. It incorporates `d3.zoom` for pan and zoom interactions, and uses the TopoJSON `feature` function to convert the topology into GeoJSON features, with country names added via tooltips from the TSV mapping.