This example shows an interactive world map that loads geographic data asynchronously and renders it as SVG paths. It uses a Natural Earth projection with graticule and outline overlays, displaying country boundaries in white strokes. The code fetches TopoJSON data from a CDN and converts it to GeoJSON using `topojson.feature`, then renders it with `d3.geoPath` and `geoNaturalEarth1`. The visualization is built with React and D3 v7, managing loading states through a state-based data flow.