Wiki Branches visualizes a hierarchical dataset derived from Wikipedia articles, starting from "Drug policy of South Korea" and branching into related topics. The D3 tree layout positions nodes horizontally, with collapsible branches that expand or collapse on click, using animated transitions to update the view. Rendered in SVG, the visualization loads data from a JSON file and employs d3.hierarchy, d3.tree, and d3.linkHorizontal to draw the links, with zoom and pan enabled via d3.zoom. Node and link opacity, stroke, and position are animated through d3 transitions.