The Acropolis, Athens, Greece: distant view with the Temple of Olympian Zeus and the Arch of Hadrian in the foreground.… https://www.rawpixel.com/image/13981638/photo-image-plant-tree-skyFree Image from public domain licenseA dim shot of a long mountain ridge during sunset. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3290830/free-photo-image-adventure-cc0-countrysideFree Image from public domain licenseKerameikos cemetery, Athens: ancient tombs. Photograph, 18--. https://www.rawpixel.com/image/14020243/kerameikos-cemetery-athens-ancient-tombs-photograph-18Free Image from public domain license