torre del filarete, front gate tower, and wall of the sforza castle, castello sforzesco, milan, italy

landmark building town tower architecture city tourism facade downtown cathedral church palace plaza spire torre del filarete front gate wall sforza castle castello sforzesco view cortile delle armi main courtyard milan italy december 15th century ancient arch blue brick court europe european exterior famous fortification fortress grass green historic historical history italian lombardy medieval milano moat monument old sky stone carmine