blast furnace for steel production with big old silos or tanks many rusty pipes and metal scaffolding in duisbrug nord landscape park in sunshine in germany

blast furnace steel production big old silos tanks rusty pipes metal scaffolding duisburg nord landscape park sunshine germany industrial manufacturing iron smelting steelworks towering industrial complex machinery historic massive construction infrastructure towering structures rusty tanks pipelines steel industry weathered corroded metal framework industrial decay engineering manufacturing process industrial heritage site steelmaking sunlight filtering