Public domain image of a romantic ruins landscape, classical architecture, free to use, no copyright restrictions - Picryl description
Giovanni Battista Piranesi (Italian, Mogliano Veneto 1720–1778 Rome) Public domain scan of Italian 18th-century print, free to use, no copyright restrictions image - Picryl description
Statorn till Värtageneratorn (uppställd på platsen). Public domain photograph related to electric power generation, electric motors, in Sweden, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of a quarry, mine, excavation, or mining site, free to use, no copyright restrictions.
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Picryl description: Public domain image of a factory, plant, manufacture, assembly line, industrial facility, early 20th-century industrial architecture, free to use, no copyright restrictions.
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description
Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description
Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description