This example displays a choropleth-style map of the United States, rendering land areas in purple and internal state boundaries in red on a silver sphere. It uses React to manage the component lifecycle, while d3-geo’s `geoAlbers` projection and `geoPath` generate the SVG paths. TopoJSON loads US Atlas data from a CDN, with `feature` and `mesh` extracting the nation outline and state borders. The map is static, showing the geographic layout without interactive elements.