This map visualization displays Nobel Prize winners per country using a world map with circular indicators. Red circles, sized using `d3.scaleSqrt`, overlay each country's geographic centroid, and hovering highlights countries and shows a tooltip via SVG path interactions. The map renders through an equirectangular projection defined by `d3.geoEquirectangular` and `d3.geoPath`, converting TopoJSON data with the `topojson` library. Country data from a CSV file is joined with GeoJSON features to position each indicator.