The bus says "REISEN," which strongly suggests a German-speaking country. The architecture, with its clean, modern-classical urban style and the distinctive church tower in the background, points towards a major German city. Driving is on the right side of the road, consistent with Germany. The sunny, clear weather and temperate vegetation are typical of Central Europe in summer. I suspect this is near the main train station in Hamburg, Germany.

I am 70% sure.

then: guess