This example displays a world map using a Natural Earth projection, with landmasses rendered in teal and graticules drawn as light gray lines. It shows a sphere outline and country border lines derived from the world-atlas TopoJSON dataset. The visualization uses d3.geoNaturalEarth1 and d3.geoPath to project geographic features into SVG paths, while d3.geoGraticule generates the latitude and longitude grid. React handles rendering through a Marks component, and TopoJSON’s feature and mesh functions extract land polygons and interior boundaries from the source data.