This example displays a natural Earth projection world map with graticule lines, landmasses in teal, and interior borders highlighted in a lighter cyan. Built with React and D3 v5, it loads geospatial data from the World Atlas TopoJSON file and converts it to GeoJSON using `topojson.feature` and `topojson.mesh`. The map is rendered as SVG paths via `d3.geoPath` with a `geoNaturalEarth1` projection, while `geoGraticule` generates the background latitude and longitude grid.