This example displays a world map using the geoEqualEarth projection, with landmasses, country borders, graticules, and a surrounding sphere. The visualization is built with React and D3 v5, using d3.geoPath to render geographic features from the world-atlas TopoJSON dataset. Land areas are filled in brown, interiors are stroked with a neutral color, and graticules appear in blue. The map is rendered as SVG, with data loaded and processed through d3.json and TopoJSON's feature and mesh methods.