Concept sketch for Dome A. 

A large slide ends it's ride by curving along the dome's edge and opening up into the lowermost pool. Soon before it carved itself into and under the middle pool's translucent trapezoidal cavity. The space ilumminated by the refracted light passing through the water and glass. Looking into the dome - a waterfall splits the inner dome's view in half cooling and humidifying a potentially warm space. 

A cool moment before the water slide ends. 

All the way down people can ride in their innertubes - as they see the water they ride on - powering water generators along the way. 

The space in the dome and its exact purpose is tbd. It could house a bitcoin mining facility, offices a gym anything. The space is left bare and undefined until a function is chosen. 
https://image.nostr.build/f929624ec4cef6d4653f5bb9a9527b7498d4b094e3314193a905884dd614a487.jpg