Mont Blanc: Albert Smith's party reaching the cabin on the Grands Mulets, 1853. Colour lithograph by F. Baumann. https://www.rawpixel.com/image/13970413/image-horse-person-artFree Image from public domain licenseDenali National Park background, mountain landscape by Heinrich C. Berann. Remixed by rawpixel. https://www.rawpixel.com/image/10160379/image-background-cloud-blue-skyView licenseTwee afgemeerde schepen op een strand (1929) by Lodewijk Schelfhout and N V Roeloffzen and Hübner https://www.rawpixel.com/image/13769688/image-paper-cartoon-personFree Image from public domain licenseConvent of Great St. Bernard, Switzerland/Italy. Tinted lithograph, 1837. https://www.rawpixel.com/image/13992677/convent-great-st-bernard-switzerlanditaly-tinted-lithograph-1837Free Image from public domain license