lwl industrial museum henrichshutte hattingen, north rhine-westphalia, germany

abandoned area blast blastfurnace cast closeup decommissioned details disused factory foundry framework furnace germany heritage historic history house industrial industry inside iron ladder lost machinery making manufacturing metal metallurgical metallurgy mill museum north old pipe places plant production rhinewestphalia ruhr rust rusted rusty scrapiron scrapmetal stairs steel steelworks strength technology vertical workshop