Castelgrande, the oldest of the three castles in Bellizona, Canton Ticino, Switzerland

castelgrande bellizona switzerland castle vineyards landscape historical architecture rocky terrain canton ticino tourism sightseeing heritage greenery mountain views ancient fortifications agriculture culture outdoor travel scenery stone walls building tourist attractions history landmark exploration lush summer tranquility nature hiking picturesque scenic fort ruins medieval panoramic site destination wine country european castles