architecture construction corkscrew stairs flight of winding stairs grate grated helical metal shape shapes spiral spiral staircase stair staircase stairs wentletrap winding stairs abstract appearance background blended brown colored coloured cream curves decorative design details interconnected interlaced interlinked interwoven light lines mosaic patterns perspectives red shaped square squared squares style surface surfaces symmetrical symmetry texture textured textures thick thin tile tiled tiles tiling vibrant wallpaper yellow color colour cross glass glassy glazed gold maroon tactile green angled angles bright colourful cross-hatched crosshatched decoration diagonal lined matrix multicolored multicoloured blue circles circular curved hearts intertwined kaleidoscopic mandala pointed points sharp colorful colors colours contrast contrasting dark distinctive fractal-art merge merging pink psychedelic-art splashes surfaced surfacing arrow-heads arrows geometric geometrical intermeshed linear linked links artistic backdrop corners fabric rolls tubes tubular weave white woven golden orange overlapping radiating rays rounded