This interactive map displays world countries as green SVG paths on a blue sphere, with hover tooltips revealing country names. The visualization uses D3 v5’s `geoNaturalEarth1` projection and `geoPath` to render geographic features from TopoJSON world-atlas data, while country names are joined via TSV data using ISO numeric codes. Users can pan and zoom the map through D3’s `zoom` behavior, which applies a transform to the map group. The code loads both TopoJSON and TSV files asynchronously with `Promise.all`.