London crossword

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Across
  1. 5. Giant ferris wheel
  2. 6. London's most famous clock is called...
  3. 9. Her Majesty's Royal Palace and Fortress is also known as
  4. 10. What was London originally called?
  5. 11. In London, Christopher is not able to do his Maths
  6. 12. One of London's biggest airports.
Down
  1. 1. What did Madame Tussaud start in 1835?
  2. 2. London stands at the River...
  3. 3. In which area of London does Christopher's mum live?
  4. 4. In London, Mrs. Boone lives together with...
  5. 7. Who is London's sovereign?
  6. 8. Who tries to stop Christopher's journey?