G:Well, yes and no…Look at this photo on the left. It’s from the World Fair in 1962. Monorails were a very popular idea in America at that time. People wanted to leave their cars at home and go to work by public transport. But they weren’t successful – monorails are diffcult to build and expensive to keep in good condition. So you’re right. There are some monorails in the world..but not very many!