This choropleth map displays world countries in solid red against a blue sphere, with each country labeled by name on hover. The visualization uses D3 v5’s `geoNaturalEarth1` projection and `geoPath` to render geographic features from TopoJSON data loaded via the world-atlas package. Interactive zooming is implemented with D3’s zoom behavior, while country styling and hover effects are defined in CSS. The map draws all features as SVG paths, with a title element added per country for tooltip-like labels.