This example presents a dual-panel visualization of global wine production data. The left panel is a choropleth map using `d3.geoEqualEarth` projection and `d3.geoPath` to color countries by production quantity, while the right panel is a scatter plot using `d3.scaleBand` and `d3.scaleLinear` to plot each country's production with circle size and color encoding. Both panels are interactive, with mouseover events highlighting corresponding elements across the two views. The visualization loads a world GeoJSON file, a CSV of production statistics, and a JSON file mapping countries to continents.