The bus has "REISEN" written on it, which is German for "travel," strongly suggesting a German-speaking country. The architecture and the style of the streetscape are very characteristic of Northern Germany. The presence of a large, historic-looking building with a spire in the background points towards a major city like Hamburg. I am fairly confident this is Germany.

I suspect this is Hamburg, Germany. I am 70% sure.

then: forward

The prominent clock tower in the background is unmistakably the Hamburg Hauptbahnhof (central station). The surrounding street layout and the presence of German-style bollards and traffic infrastructure confirm I am in the heart of Hamburg. The lush green trees and clear sky indicate a pleasant summer day in Northern Germany. I have identified the landmark and the city with high certainty.

I suspect this is Hamburg, Germany, right next to the Hauptbahnhof. I am 95% sure.

then: guess