This map displays world cities as glowing gold points, with point size proportional to population using a square-root scale. Landmasses appear in muted brown, interior borders in blue-gray, and a graticule overlays the sphere. Built with React and D3 v5, it uses `geoNaturalEarth1` projection, `geoPath` for shapes, and `geoGraticule` for the grid. City coordinates and populations load from a CSV via D3’s `csv` parser, while world topology comes from a TopoJSON file processed with `topojson`’s `feature` and `mesh` functions.