Apollo and the Muses on Mount Parnassus by Nicolas Poussin https://www.rawpixel.com/image/14247436/apollo-and-the-muses-mount-parnassus-nicolas-poussinFree Image from public domain licenseThe Castalian spring at Delphi; the cavities in the rock are for votive offerings. Etching by F.R. Hay, 1813, after E.D.… https://www.rawpixel.com/image/13988885/image-plant-person-treeFree Image from public domain license