This interactive map of the world shows each country colored by its DegreeId value from the Iran dataset, using d3.geoPath with the geoNaturalEarth1 projection to render SVG paths. Users can pan and zoom via the d3.zoom API, while a color legend built with d3.scaleOrdinal and schemeSpectral displays the categorical color mapping. The visualization loads geographic data from TopoJSON and CSV, then binds the CSV attributes to country features.