I used to believe Finland didn't really exist, it was just a make-believe land with a made-up name, because "fin" means "end" in my mother tongue. Also, I heard Santa Claus lived there, and I already knew he wasn't real.
A childhood belief about places

others believed things like this
- I used to believe that Finland was in the end of the world. Fin-land.— Francesco Delvecchio, Roma/Italia
- I used to believe that the "real" Santa Claus was at Macy's in New York City. All the rest were fakes. — Marcia
- i used to believe that a elf familly lived on my window, long after a new my parents were Santa Claus— anna
- I used to believe that, if God would die, Santa Claus would be boss.— Judith
- I used to believe that the Holy Trinity was Dad, God and Santa Claus!— Cathy P.
- When i was little, i thought Santa Claus was my grandfather— Junie