Technology now and then

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Across
  1. 2. 10 Years.
  2. 4. Used to take pictures.
  3. 6. Used to look at the stars.
  4. 8. To travel on water.
Down
  1. 1. Similar to kind.
  2. 3. Similar to a castle.
  3. 4. 100 Years.
  4. 5. Building with many old things inside.
  5. 7. Similar to improve.