This Cities: Skylines megacity is a masterpiece. Perfectly round with tiers working to the middle, this is a city I’d happily relocate to.
Seriously, look at it:
Created by Imgur user cptlande, this megacity has over 300,000 and was intended to be an “Atlantis-style” city, with numerous layers and policies. The city is split into different districts with traffic restrictions in place to ease congestion.
The One World Trade Center, fittingly, is the center of the city, with the rest of the top later completed with a medical center, space elevator and fusion plant.