This example displays an interactive world map using D3 v5 and TopoJSON, rendering countries as light-green SVG paths with an indigo stroke on a sky-blue sphere. It loads geographic data from the world-atlas countries-110m.json dataset and applies a d3.geoEquirectangular projection with d3.geoPath. Users can pan and zoom the map via d3.zoom, which applies SVG transforms. Countries highlight in maroon on hover, demonstrating basic choropleth-style interaction with projected geographic features.