If it were possible to create a inZoi set in the Middle Ages and build structures, I think it would be amazing.
It would be even more exciting if there were a feature that allowed you to stay in that era or let time progress all the way to the modern day.
I think that’s a great idea. 
That’s such a brilliant idea! A time-traveling inZoi experience from the Middle Ages to the modern day would add so much depth and excitement. I’d love to see how cities evolve through the eras!
I like this idea
Very Civilization 7 - but micro versus macro perspective - that would be interesting.
I actually would love to see this in the future as a DLC.
I also see people mentioning things like fantasy worlds, or futuristic ones like Detroit Become Human – all of which would be great! I think that the DEVS could seperate cities that are set in different worlds by having the option of which world to start your game in Earth (Cahaya, Bliss Bay and Dowon + any other new cities), [name of the medieval world], [name of a cyberpunk/futuristic world], and [name of a fantasy world], and each world could have their own different cities inside like we currently do!
I wasn’t sure this could work until I read your comment. This seem like a plausible way to do this, great idea! And honestly I would love to have all these different options. Man I would love to have an ufologist zoi that can end up traveling to an alien world 
Amazing idea