Skyscrapers

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Across
  1. 7. The main central element that support the tower
  2. 8. The first building to have more than 100 floors
  3. 11. A space, usually on top of the roof, where helicopters land
  4. 12. Country where the Makkah Royal Clock Tower located
Down
  1. 1. The tallest building in the world
  2. 2. Primary materials for constructing skyscrapers
  3. 3. A skyscraper with giant pendulum inside it
  4. 4. The strongest shape of a skyscraper
  5. 5. Tallest building in ancient Egypt
  6. 6. Latest skyscraper in Kuala Lumpur (2024)
  7. 9. Thing we use to get to higher floors
  8. 10. Country with the most skyscraper