This interactive map displays world countries as red-filled polygons on a blue sphere, allowing users to click any nation to highlight it. Built with D3 v5 and TopoJSON, it uses a natural Earth projection and loads geographic data from the World Atlas. The visualization relies on `d3.geoPath` for rendering, `d3.zoom` is not implemented, and click events trigger a `render` function that updates fill colors. Country names are derived from a TSV file and attached as SVG `<title>` tooltips.