milan, italy, europe, sforza castle, castello sforzesco, torre del filarete, tower, clock, gate, visconti, parco sempione, park

15th ancient antique antonio arch architecture art averlino bell blue bricks building built castello castle central century city clock decoration del duke entrance europe filarete fort fortification fortress francesco galeazzo gate historic housing icon iconic italian italy landmark medieval milan milano monument museum now old ornament park pietro red renaissance retro sempione several sforza sforzesco sky symbol symbolic torre tourism tower travel visconti wall