This interactive world map displays country boundaries over a blue sphere, with countries highlighted in green and a darker shade on hover. It uses D3’s geoPath and geoNaturalEarth1 projection to render geographic features from a TopoJSON dataset provided by world-atlas. The zoom behavior, implemented via the d3.zoom API, adjusts the SVG group’s transform during navigation. The visualization renders as SVG within an HTML page, and the code relies on the topojson library’s feature function to extract country polygons.