Reality Tunnel
Routine scans of the Maze revealed an anomaly—an exposed stairway where none should exist. A drone survey confirmed the impossible: a passage where up became down, a loop without exit. The steps were worn from centuries of use, but by whom? And how?

Scans of the northeast sector of the Maze showed a random structure near the top of one of the higher towers. The other towers' exteriors were blank; seemingly made of solid matter, so we sent a drone team to conduct a detailed survey. For the most part, there was a symmetry to these large complexes and megastructures, so to my mind, it warranted further investigation.
The feed from the drones showed what looked like a staircase protruding from the wall, with a landing at the top and bottom. There were two doorways, though one of the doorways was situated underneath the landing at the foot of the stairway. The stairs themselves were made of the same matter as the rest of the maze complex. They showed heavy signs of wear, pointing to heavy footfall, which was an anomaly in itself, considering the planet had only a single inhabitant for at least a thousand years. Oddly, the steps were worn on the underside too, leading us to theorise that they had been flipped or used elsewhere at some point.