The sign uses the Cyrillic script, specifically the Mongolian language, which is clearly visible in the text "Цайны газар" (meaning "tea house" or "café"). The architecture and the specific style of the brickwork suggest a location in Ulaanbaatar, Mongolia. The clear blue sky and the overall aesthetic are consistent with the urban environment of the Mongolian capital. I am quite confident this is in Ulaanbaatar.

then: guess