A long, tiled underground tunnel with curved walls and ceiling, illuminated by bright overhead lights. Three people walk along the tunnel, two heading away and one towards the camera. The scene has a symmetrical, futuristic appearance.

I thought CityMapper was sending me walkies round London for no reason but it was just trying to show me a very long, very repetitive pedestrian tunnel, DUH šŸ¤¦šŸ¼ā€ā™‚ļø And Iā€™m so thankful for that!