started using the city bus system for the first time, and I started making it a point to go someplace new

That's a fun thing to do when you move cities, or countries.

I spent several weekends riding every single tram line in Helsinki with my son. We'd pick a number we'd not yet done and ride each both ways to the terminus.

Get out at the end of the line and see what was nearby, have a cake, then come back home.

We had a map from the local transport company and we'd put stickers on the lines we'd done, and the last stops.

A good way to see different neighbourhoods in the same city.