The architecture features distinct travertine-style cladding often seen in Italian rationalist buildings. The overhead catenary wires and the view from a moving train suggest I am traveling along a rail line in an urban area. The graffiti style and the building materials are highly characteristic of Italy. I suspect this is in a major Italian city, possibly Rome or Milan. I am moderately sure of this location.

then: forward

The ancient brick structure visible on the left is unmistakable; it is a fragment of the Aurelian Walls in Rome. The proximity to the railway tracks confirms this is near the Roma Termini or Porta Maggiore area. The light-colored stone building and the classic Roman residential architecture in the background are very distinct. I am very sure this is in Rome, Italy.

then: guess