Standing at 8000 meters high, 10000 meters wide, and 25000 long.

 2000 floors, each 3 meters, floor to ceiling, the darkness in the sky rarely touches ground but suspends within the atmosphere.

So called the darkness in the sky because if you stand beyond a kilometer within any floor, there is no light save for a pin thin white horizon in all directions. 

Containing a combined 500,000,000,000 square meters of floor space, can hold up to 15 times the population of the earth standing 1 meter apart. The Darkness in the Sky is the perfect place to be…

I have tried very hard to represent this building in some form or another by shrinking it and drawing an elevation of the building at 1/1000th of its scale. Each floor represented in 3 millimeters floors, 1 millimeter thick which would put the diagram at 8 meters tall and 25 meters long and standing back to see the full thing would reduce the image to a gray rectangle. 

And trying to make a model of that scale would require the production of 2000 1 millimeter x 25 x 10 meter wafers of card each placed directly on top of eachother with 286 precisely positioned 3 millimeter tall cylinders acting as support columns between each wafer.

The thing I find interesting about this building is that it is so simple that it can be fully represented in a plan and elevation diagram in 64,004 lines and 5 dimensions and those are as follows 1, 3, 8, 10, 25, 64,   ,004