I am flying through a long, concrete tunnel with a distinct grid-like ceiling structure. The traffic is moving on the right side of the road, which is standard for North America or parts of Europe. The lighting and the specific design of the tunnel walls suggest a major urban expressway, likely in the United States. I suspect this is a tunnel in a large American city like Boston or Chicago, given the heavy infrastructure. I am moderately sure about this location.

then: forward

The tunnel's unique ceiling structure, featuring exposed concrete beams and lighting, is very characteristic of the Wacker Drive tunnel system in Chicago. The right-hand traffic and the specific way the light enters the tunnel from the street level above confirm this urban setting. I am confident this is in downtown Chicago, Illinois, USA. The architecture matches the multi-level street system found in the city's central business district.

then: guess