The viking mythology

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Across
  1. 2. The first gigant
  2. 4. Ginnungagap is a ____, nothing exist there
  3. 6. from the bones of Ymir they were created
  4. 7. Niflheim is cold and cover with
Down
  1. 1. The world of humans
  2. 2. The tree of worlds
  3. 3. One of the sons of Buri
  4. 5. Audumbla was a