abstract angles artistic backdrop background blended bright circles circular color colored colors colour coloured colours corners decorative design details geometric geometrical interconnected intermeshed interwoven kaleidoscopic patterns light lines mandala patterns perspectives pointed points radiating rays rounded shape shaped shapes style texture textures vibrant wallpaper age ages ancient architecture bronze castro Celtiberian celtic cidás citania citanias cities cividades cliff culture defendable defensive elevation fort fortified hill hill-fort hillfort hilltop house houses iron maritime ocean oval peninsula place refuge rock rocks saavem sea security settlement wall walls water appearance blue bubbles checks colorful colourful distinctive interlinked linear lined mosaic round surface surfaces textured thick thin curved curves interlaced intertwined kaleidoscopic red sharp symmetrical symmetry brilliant bronzed liquid metallic petals tiles