When I was very young, I watched an after school show about polar bears, and the narrator referred to their habitat as "the top of the world: the Arctic." I saw all the ice and thought it was clouds, and since clouds were on top of the world, that must be where they'd gone to film the polar bears. It took my mother a while to explain that we couldn't go up to the clouds to meet the Eskimos and watch the polar bears.
A childhood belief about places

others believed things like this
- that bi-polar had to do with polar bears.— barry goldberg
- I used to think there were polar bears in poland when I was 6— Lucy
- I used to think that gummy bears were evil and wanted to take over the world. I'm afraid of them to this day.Anon
- I used to believe that Disney World was in the clouds.. because you always had to fly to get there..— alskdf
- I used to believe that when it would be raining the white clouds lost to the dark clouds.— janet
- When looking at the clouds and seeing them move I use to think it was the world rotating beneath.— Andy