A world map displays country and land-mass boundaries on an equirectangular projection, filled with a pale blue and accented by graticule lines and interior borders. Built with React and D3 v5, it loads World Atlas TopoJSON data via `d3.json`, processes it with `topojson.feature` and `topojson.mesh`, and renders SVG paths using `d3.geoPath` and `geoEquirectangular`. The visualization also draws a sphere outline and graticules for a polished, cartographic look.