Background:
- The Atlanteans benefited from the baffling and enigmatic technology of the people called the Stone Builders - the same people who built the city in the Antarctic where Pyrrhus built his base
- Though they didn’t understand how it functioned, they were able to exploit some of it to manipulate stone and water, including regulating water pressure
- Thus, some of their designs can and should look like they violate conventional physics, because they do
Cities:
- The biggest unit of Atlantean construction is the city
- Cities are built buried beneath the oceanic crust, often between 5000m - 8000m below sea level - but some can be much deeper
- The goal of Atlantean city construction is stealth - they wish to remain undetected by other living beings
- They harvest energy from nearby volcanic vents
- Mass-transit tubes connect different cities together
- At the upper level of each city is a cave system (natural or artificial) called the attic, where air-breathing creatures (like humans) dwell
- The rest of the city is called the agora, and is meant for Atlantean occupation
The Attic:
- Natural or artificial cave systems, located at the uppermost part of the city
- The interior height of the attic varies widely, but can be anywhere from 10m to 100m
- Numerous “airlocks” are drilled through the rocky floor to connect the air-filled attic with the watery part of the city below
- It’s possible to break through the seabed and into the attic without flooding it, if you’re careful (this is how the Menagerie strike team got in)
- Within the attic, the Atlanteans constructed human-type buildings - multiple floors with stairs connecting the levels, walls and ceilings, the whole bit - to let humans live comfortably
- Some Atlantean buildings extend up from the water-filled city and into the attic, and have interiors that can accommodate both air- and water-breathing occupants
The Agora:
- A large open cave, filled with low-pressure sea water
- Stalagmites, stalactites, and rock columns fill these spaces, and are either hollowed out to make living spaces, or have enclosed spaces attached to them
- In a ring around the agora, homes and dwellings are carved into the rock - the open central area is for places of business, common areas, and other kinds of shared spaces