The traffic is driving on the right side of the road. The architecture, featuring blocky, multi-story residential buildings with balconies, is very characteristic of Eastern Europe. The overhead wires suggest a trolleybus or tram network, common in many cities in the region. The general atmosphere and the style of the street furniture point strongly towards a city in Romania. I am reasonably sure this is in Romania.

then: forward

The Cyrillic script on the advertisement billboard confirms this is not Romania, but rather Bulgaria. The traffic lights and road infrastructure are very typical of Sofia. The architecture of the residential blocks in the background is characteristic of the socialist-era housing found throughout the capital. I am quite confident this is in Sofia, Bulgaria.

then: guess