Closeup shot of old Völklingen Ironworks Industry in Saarbrücken, Germany during daytime

closeup shot volklingen germany voklingen ironworks unesco world heritage site industry interior view abandoned metals saarbrucken daytime metallurgy historic business design sky travel building architecture blue work world plant factory europe tourism unesco iron property industrial tourist chimney outdoor german landmark ironworks town saarland museum heritage scenery scene tour attraction destination european place scenic spot