https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13988885Edit ImageSaveSaveEditCropCustom TextThe Castalian spring at Delphi; the cavities in the rock are for votive offerings. Etching by F.R. Hay, 1813, after E.D. Clarke.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 952 px | 300 dpiLarge JPEG 3044 x 2416 px | 300 dpiFree DownloadThe Castalian spring at Delphi; the cavities in the rock are for votive offerings. Etching by F.R. Hay, 1813, after E.D. Clarke.More