Thousands of years ago, there were these guys who… never mind.
It was a hundred years ago. And they weren’t guys. They were robots.
Robots who were run by magic and steam. No ’lectronics or TL8 stuff.
N’the robots awoke after a long, deep sleep, only to find they were completely buried under a few feet of soil. They couldn’t move, but since they were just robots, they didn’t have to. So they just sat there, waiting.
And this is somewhere in the world, but I won’t say where. Could be anywhere. The PC’s are highly unlikely to ever find it. I have no intention of having them eventually encounter these robots. But it calms me (and pacifies at least one of my players) to know that they’re there. Somewhere.