One of my favorite stories is about a Russian family that fled before WWII to avoid religious persecution. They lived completely out of touch in the forest until being discovered 40 years later. They were visited occasionally after that but they wanted to remain. Some of the things that fascinated them were:
Satellites. They could easily see them in the dark skies but just figured, “man has discovered some new thing.”
Television. They viewed it at the camp of the explorers. They absolutely loved it.
Cellophane fascinated them. “Look, it is like glass yet it crumbles!”