The architecture and the style of the flower stall and urban layout strongly suggest a city in Eastern Europe. The yellow taxi cabs are common in several cities in this region. The Cyrillic-like or Slavic-looking signage and the general atmosphere point towards Romania or a neighboring country. The large apartment blocks in the background are typical of the socialist-era urban planning found in Bucharest. I am fairly confident this is Bucharest, Romania.

then: guess