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