Outer walls of the Ark Fortress, Registan Square, Bukhara, Uzbekistan

mg0520 travel tourism holiday vacation sightseeing tourist attraction destination travels destinations ark fortress fortresses citadel citadels registan bukhara bokhara boukhara boukara buxoro buhara buchara bukara uzbekistan ouzbekistan usbekistan ozbekistan ozbekiston uzbekiston asia asian uzbek ouzbek usbek ozbek blue sky culture cultural history historic historical heritage building buildings architecture architectural muslim moslem islam islamic old fort forts fortified fortification fortifications castle castles city town wall walled walling walls ramparts rampart impregnable landmark landmarks towering battlement battlements stronghold bastion bastions tower towers watchtower watchtowers turret turrets sloping crenellation crenellations crenellated nobody conical outer brick bricks brickwork brickwall silk road bukhoro outdoors outdoor outside exterior horizontal