This interactive map displays world countries with hover highlighting, using an orthographic projection of Natural Earth data. The visualization leverages D3 v5’s `geoNaturalEarth1` projection and `geoPath` for rendering, with TopoJSON’s `feature` function parsing country boundaries. Users can pan and zoom via D3’s `zoom` event, which applies a transform to the SVG group containing the map. Country names are loaded from a TSV file and shown as tooltips using SVG `title` elements.