Derinkuyu: Mysterious underground city in Turkey found in man's basement
bigthink.com
bigthink.com
Some Aussie opal miners already took note.
This is a musty basement in need of repair. One wall appears more cracked than many of the others.
> swing sledgehammer
https://rpg.stackexchange.com/questions/71340/if-a-secret-do...
https://www.enworld.org/threads/perception-in-5e-discuss-how...
They just didn’t build below the water table…simple…. They probably improved it by digging the wells good and deep…
Yes, I’m concurring with the first reply.
They wouldn't be optimal ventilation shafts, but they'd be hidden, and apparently generally sufficient.