Array data structure | The Structure of Scientific Revolutions | structure | Toutle River Sediment Retention Structure | Structure relocation | hyperboloid structure | Theater (structure) | Tensile structure | Roman theatre (structure) | Protein structure | protein structure | Lamellar structure | Data structure | chemical structure | Breakwater (structure) | Air-supported structure | World's First Hyperboloid structure | World's First Diagrid Hyperboloid structure | Vichada Structure | The Writer's Journey: Mythic Structure for Writers | The World's First Hyperboloid structure | The steel structure of the cable car station in ''Johnny English Reborn | Structure of the Argentine Army | Structure (journal) | Structure fire | Structure | Stack (data structure) | Ribbon diagram of Sucrose Synthase-1 3S27 Structure, isolated from ''Arabidopsis thaliana | Protein structure prediction | protein structure prediction |
For compact simply-connected manifolds of dimension 4 Simon Donaldson found examples with an infinite number of inequivalent PL structures, and Michael Freedman found the E8 manifold which not only has no PL structure, but is not even homeomorphic to a simplicial complex.