I used to belief that the countries in the world were actually small planets. All together they would make up the Earth. So, if I would visiting another country, I would have to fly through a tube to get into the other country.
You can imagine the surprise when we visited Germany (I'm Dutch) and it was just at the other end of the street.
What a ripoff!
A childhood belief about places

others believed things like this
- I used to believe that the moon was another country and that all countries were little planets.Anon
- I used to belive, that USSR is the best country in the World...:(— Iryna
- I used to think wars started when a sergeant from one country socked a sergeant from another country.— recovering
- I used to believe that every country in the world had the same time. Guess I didn't consider time zones eh?— what are time zones again
- I used to think it was illegal to speak German in Germany because of World War Two.— Anonymous
- i used to believe that 'overseas' was a countryAnon