https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14006774Edit ImageSaveSaveEditCropCustom TextCivil engineering: the Pont Cysylte aqueduct, the aqueduct at Pyrgos, the aqueduct at Roquefavour and the Colosseum at Rome. Engraving.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 825 x 1200 px | 300 dpiLarge JPEG 2272 x 3305 px | 300 dpiFree DownloadCivil engineering: the Pont Cysylte aqueduct, the aqueduct at Pyrgos, the aqueduct at Roquefavour and the Colosseum at Rome. Engraving.More