background ceiling clouds construction curve dome glass green lattice London museum roof sky structure transparent triangles window architecture beam beams brown housetop latticework orange pattern patterns plank planks shelf shelves symmetric symmetry wood wooden blue British Museum England english futuristic geometric Great Britain Great Court modern abstract backdrop border building color colour design element fence frame framework gardening grain graphic grunge hi-res illustration image mesh natural New old panel pine retro rough row space striped style texture timber trellis vector wall african broad-mouthed collagen endangered flat-mouthed gray grazer grey heavy herbivore herbivorous hide horns keratin large lattice structured mammal megafauna odd-toed ungulate perissodactyl placid powerful rhino rhinoceros skin snout southern white rhinoceros square-lipped rhinoceros strong thick threatened tough wide-lipped rhinoceros creases folds white rhinoceros