This example renders an interactive world map using the Natural Earth dataset from world-atlas, displaying country boundaries with hover highlighting. The visualization uses D3’s geoNaturalEarth1 projection and geoPath to draw SVG paths, with topojson’s feature method converting TopoJSON to GeoJSON. Countries are colored green, turning red on mouseover, while the ocean sphere is light blue. The map supports pan and zoom through d3.zoom, which applies a transform to the map’s group element.