This example shows a world map rendered with a natural Earth projection, displaying country boundaries as filled shapes and interior borders as distinct strokes. The visualization uses React to manage the component structure and d3-geo’s `geoPath` and `geoNaturalEarth1` for projection and path generation. TopoJSON data from the World Atlas is loaded via d3.json, with `feature` and `mesh` extracting land polygons and country interior lines. Styling with CSS defines a blue ocean sphere, graticule grid, and teal landmasses.