I am flying through a tunnel with white tiled walls and distinct blue lights along the sides. The road markings are white, and the driving appears to be on the right side of the road. The tunnel architecture looks modern and well-maintained, typical of major European infrastructure. I suspect this is a tunnel in a major city, possibly in Germany or a neighboring country. I am not very sure yet, as tunnels often look similar.

then: forward

The tunnel features distinct green chevron markings on the walls, which are characteristic of specific tunnel safety signage in France. The driving is on the right side of the road. The clean, modern aesthetic of the tunnel walls and the lighting layout strongly suggest a major urban tunnel in the Paris region. I am fairly confident this is the Duplex A86 tunnel near Paris.

then: guess