The Advance–Guard, or The Military Sacrifice (The Ambush) (1890) by Frederic Remington. The Art Institute of Chicago.… https://www.rawpixel.com/image/2907363/free-illustration-image-horse-painting-warFree Image from public domain licenseThe ICESCAPE mission, or "Impacts of Climate on Ecosystems and Chemistry of the Arctic Pacific Environment," near Alaska.… https://www.rawpixel.com/image/418602/icy-seaFree Image from public domain licenseGreat speos: Continuation and end of the second [fourth] painting from Monuments de l'Égypte et de la Nubie… https://www.rawpixel.com/image/421240/free-illustration-image-egypt-horse-egyptianFree Image from public domain licensePensacola Beach, United States. 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