https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13968797Edit ImageSaveSaveEditCropCustom TextThe castle of knowledge, flanked by the spheres of destiny and fortune. Woodcut, 1556.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 813 x 1200 px | 300 dpiLarge JPEG 2325 x 3433 px | 300 dpiFree DownloadThe castle of knowledge, flanked by the spheres of destiny and fortune. Woodcut, 1556.More