This example displays a polished world map with country boundaries and graticules, rendered as SVG elements. The visualization uses a natural Earth projection with `d3.geoNaturalEarth1` and `d3.geoPath` to draw land masses, country interiors, and sphere outlines. It loads geographic data from the World Atlas TopoJSON, converting it via `topojson.feature` and `topojson.mesh`. A React component structure manages the data with a custom `useData` hook, while CSS styling applies a muted teal color scheme to the land and interiors.