"19. Jahrhundert" "19th century" Alemanha Alemania Allemagne "apartement house" Architecture Architektur "Artifical light" "Blue hour" Building Bunt Colour Coloured Culture Dämmerung Dawn Deutschland Duitsland Europa Europe Evening "Evening atmosphere" "Fluorescent tube" "Fluorescent tubes" Germany Gründerzeit Historism Historismus Illuminated Industrialisierung Industrialization Industrie Industriekultur Industry Kultur "Künstliches Licht" Licht Light "luminescent tube" "luminescent tubes" Mehrfamilienhaus Muelheim Mulheim "Mülheim an der Ruhr" "multiple dwelling" "multiple dwelling unit" "Multiple family dwelling" Museum "Museum of technics" Neon "Neon light" "Neon tube" "Noord-Rijnland-Westfalen" "Nordrhein-Westfalen" "North Rhine-Westphalia" NRW "Öffentliches Gebäude" "Regiao do Ruhr" "Rhenanie-du-Nord-Westphalie" Ruhr "Ruhr Area" "Ruhr Bölgesi" "Ruhr District" Ruhrgebied Ruhrgebiet Ruhromradet Supply Technical "Technical building" "Technical museum" Technik Technikmuseum "Technique museum" "Technisches Museum" Tyskland Versorgung Wasserturm Wasserversorgung "Water reservoir tower" "Water supply" "Water tower" Westeuropa "Zaglebie Ruhry"