Therefor, cities would be minimal, if at all. Humans made the greatest mistake in history when they decided to quit being hunter - gatherers, and began to develop agriculture, which led to the development of permanent settlements. Everything about cities serves to breed and foster and manifest the worst in us. They are all cesspools. And deep down, I think we all know this, but can't bring ourselves to accept it.
Cities are a mistake.
The cities would be beautiful. The building would have to be painted white, as to create the feeling of peace and harmony, all would be clean and pure. Everyone would be living in peace and harmony. There would be many trees, and all the architectry would be the same. Yet your talents would be contributions to society.