The architecture features balconies with metal railings and roller shutters, which is very common in Mediterranean urban areas. The graffiti on the walls uses Greek characters, strongly suggesting Greece. The style of the buildings and the urban density point towards a major city like Athens. I am fairly confident this is in Greece.

then: forward

The sign "ΕΘΝΙΚΗ ΑΣΦΑΛΙΣΤΙΚΗ" confirms this is definitely Greece. The dense urban architecture and the specific style of the graffiti are characteristic of central Athens. The narrow street and the presence of roller shutters on the windows are classic features of the city's residential neighborhoods. I am very certain this is in Athens.

then: guess