Last Moments in Zurich

I visited the university, took a ride on the PolyBahn, the fastest way to reach upper Zurich from the train station, walked along the Zuricher See, ate ice cream in the city center...
All in all, both professionally and as a tourist, it was a very pleasant weekend. The journey back home took 7 hours, 3 train connections, and I entered home at 10:30 p.m., happy and tired.