control controlled distinctive equipment handle heavy-duty industrial inlet marked measure measured meter pipe piped pipes supplied supply tap valve water water-mains wheel architecture building building work construction construction work dust protection facade metal work railing rails safety safety mesh scaffold scaffolding steel scaffolding white mesh alien architectural buildings duct ducts fishmonk glass leicester metal modern modernism modernist plastic space steel strange structural structure unusual window windows abstract background choral church classical column craftsmanship flute formation group instrument interior mouth music musical orchestra organ pitch prospect religion religious shape shiny similar sound straight tube tubes tune barred bars caution communicate communication danger do not do not enter forbidden impede locked notice posted prevent prevented Restrict restricted restriction sign warning angles building-construction building-site building-work construction-site construction-work external height heights high lifts metal-work protected protection security steel-scaffolding tall work work-safe workmen breakage broken circular concrete corroded corrosion cracked cracks damage damaged deteriorated deterioration drain drain-pipes drainage polluted pollution ripples rippling river riverside round urban wavelets low 3D ancient artefact brass bronze concept creation design fill gold graphic illustration image lines New original purple render scrapbooking style texture unique vector angled crane greyscale