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  1. Oregon. Close-up of Owyhee Picture Jasper stone
  2. Wyoming - USGS State Mosaic
  3. Cingulate gyrus in the brain, artwork
  4. Relief depiction of Ramses II, Temple of Luxor, Egypt
  5. Wright Flyer sculpture at Wright Brothers National Memorial, North Carolina
  6. Solar System (Minimal)
  7. Mt. Etna - USGS Earth as Art
  8. Ambassador George Bush
  9. Molecule Estrogene
  10. Boxing
  11. Oregon - USGS State Mosaic
  12. San Luis, Argentina - USGS Earth as Art
  13. Conceptual image of platelet, red blood cell and white blood cell
  14. Internal view of the human heart
  15. Rocky Mountains - USGS Earth as Art
  16. Vintage Civil War Print of General Ulysses S. Grant
  17. Illustration of strip of land known as the 'fertile crescent'
  18. Terracotta Army
  19. Roof of the World - USGS Earth as Art
  20. Neanderthals hunt a cave bear
  21. Harriet Tubman, 1911
  22. Marie Curie
  23. Peter and the Mermaids
  24. Map of Palestine, Palestina Antiqua
  25. Male skeleton, computer artwork.
  26. Alice and the White Knight, from 'Alice in Wonderland' by Lewis Carroll
  27. Blood clot, SEM
  28. Book Cover of 'Jeanne d'Arc'
  29. World War I, Map, c1918
  30. Ida B. Wells
  31. Tyrannosaurus
  32. Deinonychus
  33. old-fashioned drawing compass
  34. Sigmund Freud
  35. Antique French Grape Press
  36. Dice on math game
  37. Gold Leaf Agate
  38. Lovecraft
  39. Anterior view of human skull, with labels
  40. Anterior neck and facial muscles of the human head (with labels)
  41. Alaska - USGS State Mosaic
  42. Barreal Blanco - USGS Earth as Art
  43. Solar System - Brown
  44. Map Of France, C.1900
  45. Yellowstone
  46. Portrait of General William Tecumseh Sherman (1820-91)
  47. Be Creative
  48. Knights of the Round Table