When I was little, my family and I took a trip into New York City. We went via subway, and spent the entire day underground, without coming up to the surface. After returning home, I was feverishly wondering: "What's on top of New York City?"
A childhood belief about trains

others believed things like this
- I used to believe that the "real" Santa Claus was at Macy's in New York City. All the rest were fakes. — Marcia
- That there was an underground tunnel linking New York to San Francisco.— Christophe Chang
- I thought the underground railroad was actually a subway.— Greg
- I used to belive that all TV shows were taped in my home city, thats why they were shown here.Anon
- I used to think that New York was pronounced "Yew Nork"Anon
- When I was young I thought that York Peppermint Patties were illegal drugs.— Shirley B.