Imagery of the ruins of the Nymphaeum of Alexander Severus (‘Temple of Minerva Medica’). So very worth a visit for artists making that all important trip to Italy back around 1800.

“Rome: The Ruined Nymphaeum of Alexander Severus (‘Temple of Minerva Medica’)” ca. 1796. British. Watercolor on paper. Collaboration of Thomas Girtin (1775-1802) who did the pencil work which was presumably copied from a sketch by John Robert Cozens (1752–1797). Watercolor by Joseph Mallord William Turner (1775–1851). Inscribed by Thomas Girtin in pencil “Minerva Medica.” Not stamped. Collections of the Tate Galleries. Cc0 License 3.0. via https://www.tate.org.uk/art/artworks/turner-girtin-rome-the-ruined-nymphaeum-of-alexander-severus-temple-of-minerva-medica-d36565

“Temple of Minerva Medica.” 1826. French. Oil on canvas. Camille Corot, artist (1796-1875). Collections of the Musée des Beaux-Arts d’Angers, Angers. In the public domain due to age. via https://www.wikiart.org/en/camille-corot/temple-of-minerva-medica-1826
 “Imaginary View of the Temple of Minerva Medica.” 1660-1681. Oil on canvas. Attributed to Niccolò Codazzi (1642-1693) and Jacob De Heusch (1656 (baptized) -1701). Collections of the Musée des Beaux-Arts de Bordeaux. In the public domain in the United States because the artists have been dead over 100 years. via https://commons.wikimedia.org/wiki/File:Niccol%C3%B2_Codazzi_and_Jacob_de_Heusch_-_Imaginary_View_of_the_Temple_of_Minerva_Medica.jpg
“Aqueduct V, Castellum Aquae, rebuilt by Alexander Severus, A.D. 225, called also a Nymphaeum, where the trophies of Marius were hung.” 1857-1870. Albumen print on card. Carlo Baldassarre Simelli (fl. 1857-1870)) photographer. Title taken from  “Historical photographs : a catalogue of three thousand three hundred photographs of antiquities in Rome and Italy, prepared under the direction of John Henry Parker.” which was published in London in 1879. Image © 2009-2020 British School at Rome. Fair use license. via http://www.bsrdigitalcollections.it/details.aspx?ID=0016569

Pictures from fairyland. Images from the Panama-Pacific International Exposition which was held in San Francisco, California in 1915. Many with illuminations by Walter D’Arcy Ryan of General Electric who had previously lit up Niagara Falls.

"Night Illumination - Panama-Pacific International Exposition - San Francisco, California - 1915."
“Night Illumination – Panama-Pacific International Exposition – San Francisco, California – 1915.” 20th c. Image © Wolfsonian Library/Florida International University. Fair use license. via https://wolfsonianfiulibrary.wordpress.com/2014/04/24/the-jewel-city-by-the-golden-gate-the-1915-panama-pacific-international-exposition/?blogsub=confirmed#blog_subscription-3

"View Along Avenue of Palms." X-131.
“View Along Avenue of Palms.” X-131. Illustration from the official souvenir booklet and published by the Pacific Novelty Company, San Francisco. 1915. Colorized photograph. In the public domain. via http://digiarchive.blogspot.com/2011/07/panama-pacific-international-exposition.html

"Palace of Horticulture Illuminated." X-162.
“Palace of Horticulture Illuminated.” X-162. Illustration from the official souvenir booklet and published by the Pacific Novelty Company, San Francisco. 1915. Colorized photograph. In the public domain. via http://digiarchive.blogspot.com/2011/07/panama-pacific-international-exposition.html

"The Jewel City" by the Golden Gate: the 1915 Panama-Pacific International Exposition.
“The Jewel City” by the Golden Gate: the 1915 Panama-Pacific International Exposition. 1915. Probably a vintage postcard. Image © The Wolfsonian Library, Florida International University. Fair use license. via https://wolfsonianfiulibrary.wordpress.com/2014/04/24/the-jewel-city-by-the-golden-gate-the-1915-panama-pacific-international-exposition/

Illuminated building from the exposition.. 1915.
Illuminated building from the exposition. 1915. Lantern slide. Joseph Abel, photographer. Department of Agriculture, United States National Archives. In the public domain. via https://catalog.archives.gov/id/24720353

Illuminations, Panama-Pacific International Exposition.
Illuminations, Panama-Pacific International Exposition. 1915. Lantern slide. Joseph Abel, photographer. Department of Agriculture, United States National Archives. In the public domain. via https://catalog.archives.gov/id/24720371

Illuminated building with reflecting pool, Panama-Pacific International Exposition
Illuminated building with reflecting pool, Panama-Pacific International Exposition. 1915. Lantern slide. Joseph Abel, photographer. Department of Agriculture, United States National Archives. In the public domain. via https://catalog.archives.gov/id/24720395

Lots of wonderful lantern slides left though these are all the ones showing the illuminations. But all with the same dream-like quality. Look for one or two more posts with some of those.