mine shaft tower 'krystyn' in former coal mine 'michal' in siemianowice, silesia, poland

air architecture big blue building city clear sky climate change coal construction ecology elevator energy environment equipment europe factory frame global warming heritage high historical industrial industry ladder machinery metal michal outdoors poland pollution power shaft siemianowice silesia silhouette stair staircase steel structure tall technology tower tree urban wheel 'krystyn' former 'michal'