This interactive map visualizes global immigration flows to and from selected countries in 2020. Clicking a highlighted country filters and displays bundled migration paths, rendered as curved lines, from that origin to destinations worldwide, with a bar chart below ranking the top 20 destination countries by immigrant count. The visualization uses React with D3 v5, employing `d3.geoNaturalEarth1` and `d3.geoPath` for the map, `d3.ForceEdgeBundling` for flow aggregation, and `d3.scaleBand` with `d3.scaleSqrt` for the bar chart, drawing data from a CSV file.