This interactive globe visualizes world countries using an orthographic projection, with a graticule overlay for spatial reference. Users can drag to rotate the globe via `d3.drag` and zoom using `d3.zoom`. Clicking a country switches the projection: selecting the United States triggers a `d3.geoMercator` view, while any other country reverts to `d3.geoOrthographic`. Country boundaries are rendered as SVG paths from TopoJSON world-atlas data, with names loaded from a TSV file and colors applied via CSS hover states.