Bio dome! If you haven’t seen that movie I suggest you do!!!
This space dome, or like in the movie Bio-Dome, it’s a form of enclosed system where it’s sealed from the outside so inside it’s like its own world. I assume when we finally start moving to Mars, this is what the colonies in there will be living in, Space Dome’s where you can find anything you could find on Earth.
This is a really clever idea to have multiple worlds into one. If you can’t set into what topic your world could be, you can just fill it up with multiple ones all of them secluded from each other in their own Space Dome. We think this would be very unique, and even though this image just shows one, you can star with that one, replicate it and then start filling them up with all the other crazy ideas you have but dont really go with each other.