The US (but its hard)

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Across
  1. 1. The first World Series
  2. 3. NASA
  3. 4. Artificial rain
  4. 5. The typewriter
  5. 9. The geographic center of North America
  6. 10. 98% of the world's crayfish
  7. 11. Graceland, the estate and gravesite of Elvis Presley
  8. 14. The first Girl Scouts
  9. 16. The largest underground cave in the world
  10. 19. the driest state
  11. 20. The first tea farm in the U.S
  12. 21. The first log cabins in North America
  13. 22. The first parking meter
  14. 26. The first American cookbook
  15. 30. The world's smallest park
  16. 32. ,George Washington Carver
  17. 33. The only full-length statue of George Washington
  18. 35. Mark Twain
  19. 36. Boeing
  20. 38. produces most cereal in the U.S.
  21. 39. Coca-Cola
  22. 42. The longest coastline in the U.S
  23. 43. The first magazine in America
  24. 45. U.S. spacecraft launchings
  25. 46. The largest production of maple syrup in the U.S.
  26. 48. The only active diamond mine in the U.S.
  27. 49. The famous Car Race
Down
  1. 1. The oldest rock in the world, 3.8 billion years old
  2. 2. Marbles
  3. 6. the first English child born in America
  4. 7. The most telescopes in the world
  5. 8. (State Name here)Red chickens
  6. 12. the shortest and steepest railroad in the US
  7. 13. Helium was discovered here.
  8. 15. The world's first drive-in movie theater
  9. 17. The only roller skating museum in the world
  10. 18. The first umbrella factory in the U.S
  11. 23. The “Register of the Desert,
  12. 24. Smokey Bear
  13. 25. The world's largest natural, indoor warmwater pool
  14. 27. The first electric traffic lights
  15. 28. The longest main street in America
  16. 29. Rainbow Bridge, the largest natural stone bridge in the world
  17. 31. The only royal palace in the U.S
  18. 34. The first presidential inauguration
  19. 37. The HQ of McDonald’s
  20. 40. The world's largest silver nugget
  21. 41. Grasshopper Glacier
  22. 44. a 3,500-year-old tree
  23. 47. The most easterly point in the Main 48