This example displays an interactive world map using an equirectangular projection rendered as SVG paths. Clicking a country highlights it, while hovering turns countries yellow. The visualization loads geographic data from the World Atlas TopoJSON and TSV datasets, using `d3.geoPath` with `geoEquirectangular` projection and the TopoJSON `feature` API to extract country boundaries. Styles for the sphere background and country fills are defined in a separate CSS file.