A grid of 3D cubes with negative heights forms a field of inverted pillars, each labeled with a numeric value reflecting its length. A button triggers a re-render of the data, while the whole scene can be dragged to rotate in three dimensions. The visualization uses the `d3-3d` library to project cube vertices and faces, with D3 v4 handling transitions and sorting. The code constructs cube data procedurally using random uniform heights and animates the cube faces, text labels, and sorting order via `.transition().duration()`.