This visualization displays the neighborhoods of Portland, Oregon as a geographic map rendered using SVG paths. The map is projected using `d3.geoConicEqualArea` and drawn with `d3.geoPath`, with TopoJSON data converted to GeoJSON via the `feature` function. The React component `Marks` iterates over the map features to generate each neighborhood path, styled with teal strokes. The map title “Taiwan” appears in the HTML, though the actual data represents Portland boundaries.