This world map visualization displays Earth’s landmasses in teal against a light gray sphere, with graticule lines and interior borders in subtle contrasting strokes. Built with React and D3 v5, it uses `geoNaturalEarth1` and `geoPath` to project features from the World Atlas TopoJSON dataset, while `geoGraticule` generates the coordinate grid. The `Marks` component renders SVG paths for the sphere, graticules, land, and country interiors, and the data is processed with the TopoJSON `feature` and `mesh` APIs.