old factory

18th 19th 20th abandon abandoned abandons athens black blue brick bricks building cement chimney chimneys concrete dark detail dirt door doors entrance factory fill flue funnel gas gravel greece greek heavy industrial industries industry iron labor load machinery manufacture manufacturing metallic mill museum old orange outdoor outside part pipe pipes piraeus plant pollute pollution quarries red retro rock roof rust rusty silo sky smokestack stack storage structure tall tiles tower transport transportation warehouse window windows zone