Liquinia

Liquinia.

One of the cities that was in the euphotic zone where sunlight could still reach. The city was teeming with all sorts of life around it, as at its center was a large bubble that repelled any water from coming in.

This was a city where Atlanteans held control. In their history, it was mentioned that Atlanteans were originally those from the human race, but after spending a significant amount of time in the sea, they adapted to living there. The curious thing was that for a majority of the cities they controlled, there were many areas where they used their technology to create pockets of air where many of the old human activities were carried out. 

Their counterpart, Merfolk, preferred the sea in its entirety. Their cities were fully wrapped around in the water as this was their natural home.