castelgrande battlement

abstract ages ancient architecture attack background battlement bellinzona brick bricks building castelgrande castle centuries climb construct construction control defending defense defensive dense embattlement empire europe european firewall firm fort fortification fortified fortress gothic hard high historic history inside invade keeping medieval merlon mighty military mountain obstacle old outside past power powerful powers prison protect protection protective rampart safe safety secure security stone stones stoneware strong stronghold structure sturdiness sturdy sun switzerland thick tree vintage wall walls weathered