This example displays a world map rendered as an SVG using the Natural Earth projection. The visualization shows landmasses in a purple fill with red country borders and blue graticule lines over a white sphere, all generated with d3.geoPath. The code loads geographic data from a TopoJSON world atlas using d3.json and processes it with topojson.feature and topojson.mesh. React manages the component state through hooks, while the Marks component structures the SVG paths for each geographic layer.