Yea. Living and research and entertainment space. Each module interchangeable and upgradable for different purposes. I've always had this image in my mind as a kid. So I asked AI to generate it. Now you get to see what my imagination saw since childhood.
Looking at the size of Elon Musk in that last picture, that first picture must have been a bunch of trolls
You only have to do that when sleeping and living inside the modules. No need to put on space suits. A little inconvenient but still more comfortable. Elon Musk wants to nuke the poles to melt the ice and create a Mars atmosphere. I think the best way is to look for lots of ice meteorites and redirect them to Mars and create water and atmosphere the same that gave Earth water. But waiting for some to pass by might take too long. Something a future generation would have to plan up.