milan, italy, europe, sforza castle, castello sforzesco, museum, tower, moat, ditch, bricks

15th ancient antique arch architecture art blue brick bricks building built castello castle century city decoration ditch duke entrance europe fort fortification fortress francesco galeazzo gate green historic history housing iconic italian italy lombardy medieval milan milano moat monument museum museums now old ornament renaissance retro several sforza sforzesco sky symbol symbolic tourism tower travel visconti wall