I used to think underground trains actually descended into the tunnel, like a rollercoaster.
A childhood belief about trains

others believed things like this
- That there was an underground tunnel linking New York to San Francisco.— Christophe Chang
- When trains (subways) go underground, my little sister thought that the lights were shooting stars.— Katie
- I used to believe that the Lehigh tunnel in Pennsylvania was created by Superman.— Holz
- My mom would tell me to stay off the railroad tracks because the trains were silent and super fast.— Roger
- that hills were giants buried underground...— tracy g
- I thought the underground railroad was actually a subway.— Greg