This example renders a world map using country boundaries and land masses from the World Atlas TopoJSON dataset. The visualization displays geographic features with graticules for visual reference, polished with a clean aesthetic. Built with React, it loads data via `d3.json` and processes the TopoJSON topology using `feature` and `mesh` from the `topojson` library. The map is drawn with `d3.geoPath`, while the code structure separates data handling in `useData.js` and visual rendering in `Marks.js`.