When I was a kid I always thought that a water tower was the robot from the TV show "Lost in Space".
A childhood belief about water towers

others believed things like this
- i used to think the water tower was filled with milk— jen
- i used to believe that humpty dumpty lived in our towns water towerAnon
- I used to believe the large metal structure in Paris, France, I thought it was the "Eye Full Tower"— Janet
- i used to think that vacuum cleaners had little piece of space inside them because space is a vacuumAnon
- I used to believe that Jesus lived in the tower of the churchAnon
- I used to wonder why they didn't fix the Leaning Tower Of Pisa. Weren't they embarrassed that it was crooked?— Bootlebat