As part of the expansion of the Great Lakes Earth mythology, I have been muddling over the possibility of megacities based on real-life proposals that, for the moment, exist only on paper. They are of only three dimensions:
- Pyramidal cities 2004 meters tall and covering a floor area of eight square miles
- Cubical cities two miles tall and covering an area of 140 square miles
- Cylindrical cities four miles tall and six miles wide