This example displays a world map with country boundaries rendered as SVG paths on a Natural Earth projection. It visualizes land masses, country interiors, graticules, and the globe’s sphere using `geoNaturalEarth1`, `geoPath`, and `geoGraticule` from d3-geo. The data comes from the World Atlas TopoJSON, processed with `feature` and `mesh` from topojson to generate land polygons and interior boundaries. Styling applies distinct fills and strokes for each layer.