Blery, Eugène, Landscape, 1835-1840. Chicago, Art Institute of Chicago. Gift of the Old Masters Society (1980.612). CC0 1.0 Public Domain Dedication.

Chen Ruyan, Mountains of the Immortals: detail. Yuan dynasty. Cleveland, Cleveland Museum of Art. Bequest of Mrs. A. Dean Perry (1997.95). CC0 1.0 Public Domain Dedication.

Demeny, Georges, [Fencer], 1906. New York, Metropolitan Museum of Art. Purchase, Alfred Stieglitz Society Gifts, 2010 (2010.1). CC0 1.0 Public Domain Dedication.

Friedrich, Caspar David , New Moon above the Riesengebirge Mountains, 1810 or 1828/1835. Washington, D.C., National Gallery of Art. Wolfgang Ratjen Collection, Purchased as the Gift of Helen Porter and James T. Dyke and Dian Woodner (2007.111.10). Courtesy of the National Gallery of Art, Washington.

Gentile da Fabriano, Coronation of the Virgin, c. 1420. Los Angeles, J. Paul Getty Museum (77.PB.92). CC BY 4.0.

Inness, George, Landscape, Sunset, c. 1887-1889. Chicago, Art Institute of Chicago. Edward B. Butler Collection (1911.35). CC0 1.0 Public Domain Dedication.

Gutiérrez, Felipe Santiago, Indian Woman with Marigold (Mujer indígena con cempasúchil), 1876. Los Angeles, Los Angeles County Museum of Art. Gift of Ronald A. Belkin, Long Beach, California (M.2013.130.2). Courtesy Los Angeles County Museum of Art.

Israels, Isaac, Shop Window, 1894. Amsterdam, Rijksmuseum. Mr. and Mrs. Drucker-Fraser Bequest, Montreux (SK-A-3592). Public Domain. Courtesy of the Rijksmuseum.

Mural Fragment with Elite Male and Maguey Cactus Leaves, 500-550 CE. Central Mexico, Tlacuilapaxco apartment compound(?), Teotihuacán style, Classic Period. Cleveland Museum of Art. Purchase from the J. H. Wade Fund (1963.252). CC0 1.0 Public Domain Dedication.

Ruysch, Rachel , Roses, Convolvulus, Poppies and Other Flowers in an Urn on a Stone Ledge, ca. 1680s. Washington, D.C., National Museum of Women in the Arts.  Gift of Wallace and Wilhelmina Holladay. Courtesy of the National Museum of Women in the Arts.

St. Gallen, Stiftsbibliothek, Cod. Sang. 23; p. 31 – Folchart Psalter (Psalterium Gallicanum with Cantica). CC BY-NC (https://www.e-codices.ch/en/list/one/csg/0023)

Tiraz Textile Fragment, late 9th-early 10th century. New York, Metropolitan Museum of Art. Gift of George D. Pratt, 1929 (29.179.9). CC0 1.0 Public Domain Dedication.

Watanabe Kako, Avondgloed in het Nishi park in Fukuoka, 1936. Color Woodcut. Amsterdam, Rijksmusuem. Purchased with the support of the F.G. Waller-Fonds (RP-P-1994-1). Public Domain. Courtesy of the Rijksmuseum.