Yeah, I’ve chased a few of those out‑of‑maps stairs. One time I found a cracked flight that opened into a sealed concrete shaft—no doors, no windows, just a damp echo. I started sketching it, mapping every rusted rail, thinking the city map had forgotten that whole level. Turns out it was an old fire escape that never finished its last block. It’s weird, like the city is keeping a memory in the cracks. Have you tried following those steps into the unknown?