This example displays a world map using a natural Earth projection, with landmasses filled in teal and country borders drawn as interior mesh lines. The visualization loads GeoJSON topology data from the World Atlas TopoJSON file, then processes it with topojson feature and mesh functions. Using D3's geoNaturalEarth1 projection and geoPath, the map renders graticules and sphere outlines for context. The React-based application asynchronously fetches and transforms the geographic data through a custom useData hook, with styling applied through SVG classes.