This example displays a world map with country boundaries rendered as SVG paths. The map uses an equirectangular projection and includes a sphere outline for context. The visualization loads GeoJSON topology data from a remote source and processes it with the `topojson` library’s `feature` function before drawing each country with `d3.geoPath`. The map is styled with a teal land color against a light gray sphere, and the React component structure manages the data loading and SVG rendering.