World—Universe Cosmology (WUC) describes the World as a finite, boundless three-dimensional Hypersphere forming the surface of an expanding four-dimensional Nucleus embedded in the Eternal Universe. The Observable World is identified with the Hubble Bubble. Its large-scale structure is described as a Patchwork Quilt of Luminous Superclusters formed in different regions and at different cosmological times.This paper develops a hierarchy of Great Structures within the Observable World, from the Hubble Bubble and Luminous Superclusters through Galaxies and Globular Clusters to Extrasolar Systems. The hierarchy is investigated using Surface Tension, characteristic Compton lengths of Universe-Created Particles (UCPs), and the Weak Interaction proposed in WUC. Particular attention is given to the dependence of structural scales on the evolving World Parameter (Q). Building on earlier WUC studies of Cosmic Bubbles, Macroobjects, and the Solar System, the analysis applies the model's fundamental physical principles to structures of different scales. The objective is to present a coherent physical and mathematical description of Great Structures within WUC, derive quantitative relationships, and identify observational tests of the proposed mechanisms.