The architecture, characterized by the distinct brownish-red building with a sharp corner and classic European style, suggests a historic city center in Eastern or Central Europe. The traffic sign (a blue arrow indicating mandatory direction) is standard for many European countries. The cobblestone streets and the specific aesthetic of the buildings point strongly toward the Baltic region. I suspect this is Vilnius, Lithuania, given the architectural style and the urban layout. I am moderately sure of this location.

then: guess