I arrived by plane in Zurich, and you cannot be anything but impressed by their efficiency: I had picked up my luggage and arrived in the city center with a train within 30 minutes of landing! I wish it was like this everywhere.
Zurich is in many ways similar to Helsinki and Vienna. It’s clean and compact, and has roughly 400 000 residents. You can walk pretty much anyway, and that was also the way I decided to get to know the city.
To be able to visit all the key sights on foot, I’d gotten myself a map from the tourist office at the railway station which had marked the recommended walking route around the city. It proved to be a good route and took me to the riverside, lakeside, and to many sights and especially churches which seem to be plenty in Zurich.
All in all, if you don’t spend too much time in museums, you can cover most of Zurich in 3 hours. For me, it was all about seeing the town, and I only paid to get into one of the sight, Fraumunster, a church which has famous glasswork by Chagall.