Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
Public domain photograph of industrial architecture, factory building, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of an arch stone structure, bridge, or tunnel, free to use, no copyright restrictions.
Picryl description: Public domain image of a construction site, industrial or commercial building, free to use, no copyright restrictions.
Picryl description: Public domain image of a damaged, burned, or destroyed building, natural disaster, war destruction, ruins, 19th-century architecture, free to use, no copyright restrictions.