American Landmarks

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Across
  1. 1. longest state route in CA
  2. 5. paved path from IL to CA
  3. 6. violent cascade in NY and a different country
  4. 9. gateway to the west, location
  5. 11. Black Hills landmark, SD
  6. 15. Abe's '63 oratory, locale
  7. 16. A polygonal meeting place of importance
  8. 17. home of Harry Potter "world"
  9. 19. signals speckled throughout ME
Down
  1. 2. famous Kentucky loop
  2. 3. CO amphitheatre
  3. 4. famous plot of land in New York harbor
  4. 7. Whitey, Capone, and the birdman's cage
  5. 8. I carved a great canyon
  6. 10. Seattle observation tower
  7. 12. home to world's largest coaster
  8. 13. 1600 Pennsylvania Ave
  9. 14. highest peak in North America
  10. 18. a seaside Pachyderm spectacle