See if you find the 1:1000 model of Zurich. It is in the basement and open to public - yet not advertised as a tourist place as it is in use by officials (city planners).
Unique things to do nearby
4.98 (408)
⋙ Discover Zurich on this Unique Tour for the Curious ™
4.96 (84)
Urban Bike Tour Zurich
4.97 (132)
⋙Zurich Old Town Express Walking Tour for the Curious™️