bush clipped cold covered England green hedge shrub snow topiary winter background cover desktop flame flames Fractal fractals mahematic math mathematics maths blue city disc hole iron man manhole pavement road sewer angles arched arches beams bricked bricks brickwork colonnade columns dark darkened height high historic light open-sided pathway paving pedestrian people perspective perspectives pillars posts roof roofing secure security shade shadow shadows shelter stonework strength strong structure structures sunlight sunshine support view views walking walkway appearances arch architectural architecture Australia entrance exterior external history lamp lampshade outside shaded wall walls ball color colored colorful colors colour coloured colourful colours coordination covering education educational firm fun hard hollow kicking kindergarten kindy outdoor equipment outdoors protective school equipment shape shaped shapes special strapped straps teaching-aid throwing toy toys abstract backdrop concrete construction contained design detail drain drainage draining grating gray grey grid grill grille heavy lattice lid lined lines maintenance metal metallic parallel rust rusty sanitation solid square squared squares urban