This interactive map uses D3.js v5 with the `geoNaturalEarth1` projection and `geoPath` to render world countries from the Natural Earth 110m dataset, fetched via the world-atlas package. Countries appear as light green regions with black strokes on a blue sphere, and hovering turns them red. A `title` element is appended to each country path, though the code assigns a generic "hello" label rather than country names. The SVG output is styled with CSS, and the topojson library handles feature extraction from the downloaded GeoJSON data.