I am flying through a tunnel with distinct white, paneled walls and bright overhead lighting. The traffic appears to be driving on the right side of the road, and the lane markings are standard white dashed lines. There are no clear signs or external landmarks visible in this enclosed environment. The tunnel architecture looks modern and well-maintained, which is common in many developed nations. I suspect this might be in a major European city, perhaps in Germany or a neighboring country. I am not very sure yet.

then: forward

The tunnel walls are smooth and light-colored, and the lighting remains consistent. I see a green emergency exit sign on the wall, which is common in European tunnels. The vehicles are driving on the right, and the overall infrastructure looks very clean and modern. I suspect this is in a major city in Germany, possibly Hamburg or Berlin. I am moderately sure.

then: guess