This interactive visualization gallery presents three distinct D3.js v7 views: a choropleth US population map using `d3.geoPath` and `d3.geoAlbersUsa` with TopoJSON state boundaries and census data, an animal taxonomy tree drawn with `d3.tree` and `d3.linkHorizontal`, and a static movie-actor network laid out via `d3.forceSimulation`. Buttons switch between views, and hover tooltips appear on the map. The network nodes and links are rendered as SVG circles and lines, with colors distinguishing movies from actors.