Tilt shot of large factory preserved due to the testimony of ferrous metallurgy and Industrial revolution by Unesco - Völklingen, Saarbrücken, Germany

tilt shot large factory volklingen saarbrucken germany unesco world heritage preservation ferrous metallurgy historic site steelworks ironworks historical landmark industrial architecture engineering industry 19th century 20th century historic preservation historic factory saarland german industry industrial complex historical significance engineering marvel cultural significance historic engineering urban exploration industrial monument iron production european history cultural tourism german history historical structures steel industry factory tour historical engineering site heritage conservation cultural industrial revolution landmark