This visualization displays a hierarchical tree of world countries, organized by continent and region, using a collapsible-free dendrogram layout rendered as an SVG. It presents the geographic structure from the root “World” down to individual nations, with text labels sized by depth. The implementation uses D3 v5’s `tree` layout, `hierarchy`, and `linkHorizontal` for curved links, while `zoom` enables panning and scaling. Data is loaded from a local JSON file, with styling applied via CSS for path strokes and text shadows.