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  1. Vintage School VI
  2. New Mexico - USGS State Mosaic
  3. Man using laptop computer
  4. Oscar Wilde, 1854 - 1900, Irish Poet And Playwright
  5. Northern Norway - USGS Earth as Art
  6. Puerto Rico - USGS State Mosaic
  7. Portrait of Booker T. Washington sitting in a chair
  8. North Carolina - USGS State Mosaic
  9. Oregon. Close-up of Owyhee Picture Jasper stone
  10. Normal spine, X-ray
  11. Australia, Northern Territory, Arnhem Land, Mt Borradaile, rock paintings
  12. Rice Terraces, Longsheng Ping'an, Guangxi
  13. Terracotta Warriors
  14. Portrait of naturalist and geologist Charles Darwin
  15. Barreal Blanco - USGS Earth as Art
  16. The Titanic's propeller in the Thompson Graving Dock of Harland
  17. San Luis, Argentina - USGS Earth as Art
  18. Io I
  19. Carte De Visite Of Edmonia Lewis, 1870
  20. The Rosetta Stone
  21. Pinned broken leg, X-ray
  22. Beyond Our Solar System V
  23. The Sun I
  24. The sun sets behind a row of spinning windmills or wind turbines
  25. Meandering Mississippi - USGS Earth as Art
  26. Titan II
  27. Abraham Lincoln Portrait, 1863
  28. The Sun III
  29. Alaska - USGS State Mosaic
  30. Oregon, Owyhee River Valley. Close-up of Morrisonite Jasper
  31. General George Patton during a ticker tape parade
  32. Lumbar vertebra
  33. Officers of 4th New Jersey Infantry, American Civil War
  34. The bones of the neck
  35. The Syrian Desert - USGS Earth as Art
  36. Mark Twain , 1901
  37. Rear view of acupuncture model
  38. Ida B. Wells
  39. Pylons in a rural landscape at dusk
  40. Our Solar System II
  41. Exoplanet HD 189733 B
  42. Women's Rights Parade, 1917
  43. Mary Mcleod Bethune (1875-1955)
  44. old-fashioned drawing compass
  45. Artillery park during the American Civil War
  46. Colours That Reflect Joy
  47. The Man and the Alembic
  48. Florida Everglades - USGS Earth as Art