There is more to Switzerland than chocolate (but it’s really good) and mountains.
The cities have amazing buildings. Basil city hall was built in the 1400’s, some of the design and paintings were added in 1522 and are still maintained today. The Zurich river front is lined with historical buildings.
Zurich and Basil both have small winding streets that are great for just exploring. On a clear day you can see the Alps from the Zurich lake front.