Famous landmarks/monuments/buildings-where are they?

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Across
  1. 3. The Grand Palace
  2. 5. The Little Mermaid
  3. 6. The Blue Mosque
  4. 8. The Parthenon
  5. 9. The Alhambra Palace
  6. 11. Brandenburg Gate
  7. 15. Oxwich Castle
  8. 16. The Titanic Museum
  9. 17. The Collesseum
  10. 18. Eiffel Tower
Down
  1. 1. Guiness Storehouse
  2. 2. The Sphinx
  3. 4. The Wailing Wall
  4. 7. Nelson’s Column
  5. 9. Angel of the North
  6. 10. Christ the Redeemer
  7. 12. Rialto Bridge
  8. 13. Stormount Castle
  9. 14. The Pyramids
  10. 15. The Wallace Monument