This choropleth map visualizes the top five largest countries by area, shading Russia, Canada, China, the USA, and Brazil in varying intensities of green against a light blue globe background. The color scale is drawn from a sequential Greens interpolator, mapping area values from 8 to 17 million square kilometers, while all other nations remain gray. The visualization uses D3’s `geoNaturalEarth1` projection and `geoPath` to render the sphere and country outlines from the world-atlas TopoJSON dataset, with a legend showing the area-to-color gradient.