places, people, things

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Across
  1. 4. The highest tower of the world.
  2. 5. The pitch where Athletic Club trains.
  3. 6. the weapon of destruction which couldn't have been created if Einstein's formula "E=mc2" didn't exist.
  4. 7. It is the biggest country of Africa.
  5. 8. The richest person of the world.
  6. 10. The person who discovered Uranus.
Down
  1. 1. The place where the war of 335 years was fought.
  2. 2. The famous physic who had ELA.
  3. 3. The person who invented the law of conservation of mass.
  4. 9. The only footballer who have won 7 ballon d'or.