The traffic is on the right side of the road, which is standard for mainland Europe. The circular blue sign with a red border and diagonal line is a classic German "no parking" traffic sign. The architecture, the specific style of the street lamps, and the deciduous trees suggest a temperate climate in Central Europe. I suspect this is in Germany. I am moderately sure.

then: forward

The street layout and the specific design of the street lamp confirm a German urban environment. The large, modern, white building structure visible in the background looks like a stadium or a large exhibition hall. Given the dense, mature trees and the paved sidewalk, this feels like an area near a large park or sports complex in a city like Hamburg. I am fairly confident this is near the Volksparkstadion in Hamburg.

then: guess