Foliage at nem-Kong, Formosa (Taiwan). Photograph by John Thomson, 1871. https://www.rawpixel.com/image/14000275/foliage-nem-kong-formosa-taiwan-photograph-john-thomson-1871Free Image from public domain licenseNakhon Thom [Angkor Wat], Cambodia. Photograph, 1981, from a negative by John Thomson, 1866. https://www.rawpixel.com/image/13998085/photo-image-background-art-patternFree Image from public domain licenseFlute or Small Container with Painted Abstract Motif by Nazca https://www.rawpixel.com/image/8944109/flute-small-container-with-painted-abstract-motif-nazcaFree Image from public domain licenseVrouwen haori met abstract patroon (1960 - 1980) by anonymous https://www.rawpixel.com/image/13748202/vrouwen-haori-met-abstract-patroon-1960-1980-anonymousFree Image from public domain licenseClose up of black greay and white spray painted design on a brick wall. https://www.rawpixel.com/image/5975170/photo-image-public-domain-art-abstractFree Image from public domain licenseThe bones of a pantomime artist's foot, viewed through x-ray; revealing a needle by one of the toes. Photoprint from… https://www.rawpixel.com/image/13996510/photo-image-background-face-handFree Image from public domain license