The Backrooms – Any empty, eerie space.
Online, urban legends describe The Backrooms as an infinite series of nondescript, yellow, windowless offices. Creepy-by-nature, liminal spaces, forming endless mazes pull in any unwary person who accidentally “noclips” through a floor or wall.
It sounds like Black Mirror or the Twilight Zone, but more real and disturbing.
The above is a copy of the original image that spawned the community-driven Backrooms urban legend.