active activities adults adventure angles appearance children children’s-area children’s-playground color colored colors colour coloured colours cool cooling equipment families fountain fountains fun leisure multiple multiple-outlets pipes piping play playground playing pour pouring safety sheltered spout spouting stream streaming streams supervised supervision unobtrusive water water-playground wet wet-area bricks brickwork builders-lift building building-construction building-site building-work buildings construction construction-lift construction-site construction-work development greyscale height high home house ladder lift metal-work railing rails scaffolding second-storey second-story security steel steel-scaffolding suburban two-storey two-story urban wall walls work architecture cement-mixers elements exterior external framework home-units homes light linear lines materials men mixers modern perspectives sand structure style supplies units workers workmen architectural balance cabin cables crane danger foliage protection roof roofs rooves sky steelwork tall trees work-safe