Remember of the
II WORLD WAR in the city.Sometime walking round Milan you can see this capital letters.U.S(uscita di sicurezza)emergency exit,R(rifugio)air raid shelter,I(idrante)fire hydrant.So when you see U.S does not stand for
UNITED STATES of AMERICA or states army base,but for air raid shelter.In this way the rescue workers easily made the job.
