The architecture, with its ornate neoclassical style and yellow facade, strongly suggests Central Europe. I see an Austrian flag hanging on the building to the left, which is a major clue. The sign "Cafe Restaurant Alte Backstube" confirms the language is German and points toward a traditional establishment. The street layout and overhead wires for trams or lighting are typical of historic European city centers. I am fairly confident this is in Vienna, Austria.

then: guess