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  1. Siberian Ribbons - USGS Earth as Art
  2. Abraham Lincoln, 1809
  3. Sierra de Velasco - USGS Earth as Art
  4. Civil War print of Union cavalry soldiers charging a Confederate firing line
  5. Mercury
  6. Minnesota - USGS State Mosaic
  7. 'Nurse's Song,' plate 18 from 'Songs of Innocence,' 1789
  8. Interiors of a library, Peabody Institute, Johns Hopkins University, Baltimore, Maryland
  9. Richat Structure - USGS Earth as Art
  10. A simplified Herzprung Russell Diagram showing how stars are classified
  11. Drafting the Declaration of Independence, 28th June 1776, detail of Thomas Jefferson
  12. Costellazioni II
  13. Idaho - USGS State Mosaic
  14. Vintage American History print of General George Washington at The Battle of Trenton
  15. A pair of Allosaurus dinosaurs explore the remains of a Diplodocus carcass
  16. Capture and Death of Sitting Bull Lithograph
  17. Heather - Botanical Illustration
  18. Knight's armor
  19. Conceptual image of DNA
  20. Pencils
  21. The Outward Bound, 1912
  22. Mushroom Chart II
  23. Vintage Civil War print featuring the Battle of Gettysburg
  24. Ferdinand Magellan (1480-1521) on discovering the Pacific Ocean
  25. Blood cells in blood vessel, artwork
  26. Brain antomy, 19th century artwork
  27. Paris at Thermopylae
  28. The Spider and the Fly, illustration from Aesop's Fables
  29. Oil well pump jacks at Bakken Oil Field near Estevan, Saskatchewan, Canada
  30. Travels Around the World
  31. The Birth of Rostam by Caesarean. Shahnameh. The Book of Kings. 16th c. Persian Art
  32. Wisconsin - USGS State Mosaic
  33. If I Were A Cloud
  34. Antique Stock Certificate I
  35. The Presidents Educational Poster, 2017
  36. Full on view of a Woolly Mammoth
  37. Pneumonia Strikes like a Man Eating Shark - WPA Poster
  38. Venus
  39. San Francisco Chronicle announcing the end of World War I, 1918
  40. Knights charging into battle
  41. Mark Twain , 1901
  42. Orbits of Earth Crossing Asteroids
  43. Normal spine, X-ray
  44. Colorized scanning electron micrograph of filamentous Ebola virus particles
  45. Alternating Motor - Blue
  46. On the deck of the Titanic
  47. Print of folk hero and frontiersman Davy Crockett
  48. RMS Titanic during fitting out, 01 January 1912