This map visualizes world countries using a natural Earth projection, rendered with SVG paths via the d3.geoPath and d3.geoNaturalEarth1 APIs. The choropleth initially displays all countries in light green against a dark sphere. Clicking a country highlights it in a distinct green and displays its name in a fixed banner, allowing users to explore geographic identities interactively. Country names come from the world-atlas TSV dataset, joined to the TopoJSON geometries via their ISO numeric codes. The visualization also includes zoom functionality through the d3.zoom module, which applies a transform to the map group.