This example displays a world map with country boundaries rendered as filled landmasses, graticules, and interior borders, using a natural Earth projection. The visualization loads TopoJSON data from the World Atlas via `d3.json`, converts it with `topojson.feature` and `topojson.mesh`, and draws the map with `d3.geoPath` and `d3.geoNaturalEarth1` in a React component. Styling applies a teal land fill and subtle gray strokes, with SVG output.