Ancient civilization

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Across
  1. 2. What is this ,,MVI''?
  2. 4. A thing where mummy was putten in.
  3. 6. One of the largest amphitheatre.
Down
  1. 1. A alphabet of acient Egypt.
  2. 3. Acient Romans created it to have clean water.
  3. 5. A place where pharaoh's were burried.