I am flying through a tunnel with concrete ceiling beams and side openings. The traffic is driving on the right side of the road. The road markings are standard white dashed lines. The tunnel structure looks like a typical urban expressway found in many major cities. I suspect this is in the United States, possibly in a city like Boston or Chicago given the tunnel architecture. I am not very sure yet.

then: forward

The tunnel architecture features distinctive concrete beams and side openings, which are characteristic of the "Big Dig" infrastructure in Boston. The driving side remains on the right, consistent with the US. The lighting and tunnel design strongly suggest the I-93 central artery tunnel. I am fairly confident this is in Boston, Massachusetts.

then: guess