Picryl description: Public domain image of a power dam, cascade, free to use, no copyright restrictions.
Picryl description: Public domain image of a locomotive, train tracks, rail transportation, railroad, railway, 19th-20th century, free to use, no copyright restrictions.
Picryl description: Public domain image of a quarry, excavation or mining site, free to use, no copyright restrictions.
Picryl description: Public domain image of a quarry, mine, excavation, or mining site, free to use, no copyright restrictions.
Public domain image of an industrial building, factory, structure, works, 19th-20th century industrial revolution, free to use, no copyright restrictions - Picryl description
Picryl description: Public domain image of a dam, cascade, water stream, waterfall, free to use, no copyright restrictions.
Picryl description: Public domain image of a canal, barge, historic place, water reflection, 19th century, free to use, no copyright restrictions.
Picryl description: Public domain image of a landscape with water, mountains, and sky, free to use, no copyright restrictions.
Picryl description: Public domain image of an office building, commercial building, 20th century architecture, free to use, no copyright restrictions.