This interactive map visualizes global immigration flows to and from selected countries using edge-bundled lines rendered with SVG. Clicking a country highlights it in red and filters the displayed migration paths to only that origin country, with line opacity and width encoding the 2020 immigrant counts. The visualization uses d3.geoNaturalEarth1 and d3.geoPath for the world map, d3.ForceEdgeBundling for bundling the flow lines, and d3.scaleSequential with d3.interpolateBlues for color encoding. Data comes from CSV files loaded via d3.csv, with country coordinates matched from a supplementary coordinate dataset.