Many of the castles that house centuries-old tapestries also run craft classes that show the public how these intricate handicrafts were made.
At one event which our friend Ellen attended, an 18th century tapestry was displayed, picture side up, and then turned over by the speaker.
Ellen was amazed to see how many loose ends and broken threads there were. The picture had looked perfect from the other side!
"That's because the strong threads take the strain for the weaker ones," she was told. "And the unbroken ones hold the broken ones together."
Leaving the castle, Ellen looked across the city lying below it to the horizon beyond. What a beautiful tapestry, she thought.