This example displays a world map with country boundaries and graticules, with landmasses filled in teal against a light gray sphere. The visualization uses d3.geoPath with a geoNaturalEarth1 projection to render geographic features from World Atlas TopoJSON data, while d3.geoGraticule generates the latitude and longitude grid lines. The React application loads data via d3.json, processes topology with topojson’s feature and mesh functions, and renders the SVG output with distinct styling for land, sphere, interiors, and graticules.