The architecture features travertine-style stone cladding, which is very common in Italy, particularly in mid-20th-century public or industrial buildings. The presence of overhead electrical lines and the specific style of the graffiti suggest I am looking out from a moving train in an urban or suburban area. The building style and the overall aesthetic strongly point toward an Italian city. I suspect this is in a major Italian city like Rome or Milan. I am moderately sure of this location.

then: guess