A new commercial building consisting of 4 parts
1. The core
2. The inner layer
3. The outer layer
4. The 30 story tinted glass panes
The first 3 items found Decor/Misc Decor, the window pane under Build mode/Windows, all costs 0.
The cheat code "moveobjects on" is needed to place everything together.
It can be used as a rabbit hole. It might look different, depending where you place the window panes.
I've placed 4 window panes in the 4 different fronts and 3 window panes per wall. There are 8 walls.