This interactive globe visualization displays world countries using orthographic and Mercator projections, rendered with SVG paths via d3.geoPath. Users can drag to rotate the globe, which adjusts the projection rotation dynamically, and zoom through d3.zoom. Clicking a country switches projections: selecting the United States triggers a transition to the Mercator projection, while other countries return to orthographic view. The map uses World Atlas TopoJSON data for country boundaries and TSV data for country names, with graticule lines drawn using d3.geoGraticule.