This example presents a hierarchical tree diagram, called "MAYUa," that organizes the spatial program of a museum. The visualization distinguishes between experiential areas like public and private spaces and laboral areas, which are further subdivided by European regions. Using a d3.tree layout with a horizontal link generator, the diagram renders nested, color-coded labels with fontSize scaled by depth. The SVG canvas supports zooming via d3.zoom, and the visual style uses a Playfair Display font and teal path strokes.