This example displays a polished world map rendered in SVG using React and D3 v5. It shows land masses in teal, country borders, graticules, and a light sphere background. The code uses `geoNaturalEarth1` and `geoPath` for projection and path generation, plus `geoGraticule` for the grid. Geographical data comes from the world-atlas TopoJSON source, processed via `feature` and `mesh` to create land and interior boundaries.