Global Rails Riddle

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Across
  1. 6. Finnish terminal, no aurora
  2. 8. Greek connection, not ancient
  3. 12. Swedish nexus, not royal
  4. 14. Hungarian east, no thermal baths
  5. 16. Swedish terminus, not a crown
  6. 20. Brussels' midday, no waffle
  7. 23. London's architectural lacework, sans clergy
  8. 24. Moscow's red, but not square
  9. 26. Croatian chief, no inventor
  10. 29. Scottish central, castle-free
  11. 31. Estonian Baltic, not aquatic
  12. 35. Swiss heart, not a bank
  13. 36. Berlin's primary, not a leader
  14. 38. Eternal City's terminus, not ancient
  15. 40. Czech main, bridgeless
  16. 42. Belgian gem, not encrusted
  17. 43. Sydney's hub, away from the surf
  18. 44. Canadian junction, no intersection
  19. 45. Finnish center, not cold
Down
  1. 1. Celestial New Yorker, not astral
  2. 2. Polish core, no dance
  3. 3. Lithuanian main, not Baroque
  4. 4. Belarusian central, tractor-free
  5. 5. Pharaoh's Cairo choice, not a pyramid
  6. 6. Dutch terminal, no cheese
  7. 7. Bulgarian central, not a church
  8. 9. Serbian hub, not a fortress
  9. 10. French nexus, neither Garde nor Guard
  10. 11. Norwegian center, no Vikings
  11. 13. Irish link, not a rebel
  12. 15. Japan's pulse, yet not a heart
  13. 17. Danish core, no mermaid sighting
  14. 18. Regal Indian halt, not a throne
  15. 19. Vienna's primary, absent emperors
  16. 20. Romanian north, not Transylvanian
  17. 21. Bosnian core, not under siege
  18. 22. Dutch core, not aquatic
  19. 25. Spanish greenery, not a meadow
  20. 27. Scottish heart, not a kilt
  21. 28. Beijing's south, no dynastic seat
  22. 30. Latvian heart, not Art Nouveau
  23. 32. Italian core, devoid of Michelangelo
  24. 33. Seoul's core, not Korean
  25. 34. Southern light, no celestial body
  26. 37. Istanbul's continental bridge, not a strait
  27. 39. Thai hub, not a temple
  28. 41. Lisbon's east, not in the Orient