Yosemite Valley, United States. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3291774/free-photo-image-abies-basin-cc0Free Image from public domain licensePre-Columbian peoples used these ledges as protection from rain and snow in Walnut Canyon National Monument, located about… https://www.rawpixel.com/image/582344/carol-highsmiths-arizona-photographFree Image from public domain licenseFenditaj eroditaj klifoj en arbaro.. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3295460/free-photo-image-architecture-art-best-stone-pictures-imagesFree Image from public domain licenseView from a rocky mountain ledge on the white clouds below. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3290688/free-photo-image-adventure-aircraft-airlinerFree Image from public domain license