Tell me something, what's your favorite fictional giant structure/building which you wish to spawn it as decoration, but couldn't find them in this site here?
Since my (new) favorite fictional giant structure is those floating energy generators Hydro-Rig from movie Oblivion.
I don't really have one honestly
Cocoon from FFXIII
Excalibur from Ace Combat Zero
Stonehenge from Ace Combat 4/7
Arasaka Tower from Cyberpunk 2077(i wanna do questionable things to it)
The Combine citadel.
Or the Prydwen, ohhhh maybe the Lucky 38
(Fallout 4 and Fallout new Vegas)
The Trinity tower
(Fallout 4)
Rain world iterator