Okay kiddo, have you ever heard of a city underground? It's like a secret city that is hidden under the ground, and Montreal has one!
It all started a long time ago, when people in Montreal realized that it gets very cold in the winter. They wanted a way to get around and do things without having to go outside in the freezing cold. So, they decided to build tunnels and rooms underground where people could go to do things like shop, eat, or even go to work!
The underground city is made up of over 20 miles of tunnels that connect different buildings, like shopping malls and office buildings, all around Montreal. There are even train stations and movie theaters down there!
But the underground city isn't just for winter, it's also a great way to stay cool in the summer. And it's not just for practical things, sometimes people even go down just to hang out and explore!
So, the underground city is like a hidden world under the streets of Montreal where people can go to do things and stay warm or cool, depending on the season. Pretty cool, huh?